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ImDrawList: Added Clone() helper function.

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omar
2018-03-17 21:10:40 +01:00
parent 4186c2c2b1
commit 1e296453ef
3 changed files with 21 additions and 8 deletions
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18
imgui.h
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@ -1579,6 +1579,7 @@ struct ImDrawList
// Advanced
IMGUI_API void AddCallback(ImDrawCallback callback, void* callback_data); // Your rendering function must check for 'UserCallback' in ImDrawCmd and call the function instead of rendering triangles.
IMGUI_API void AddDrawCmd(); // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
IMGUI_API ImDrawList* CloneOutput() const; // Create a clone of the CmdBuffer/IdxBuffer/VtxBuffer.
// Internal helpers
// NB: all primitives needs to be reserved via PrimReserve() beforehand!
@ -1600,16 +1601,17 @@ struct ImDrawList
struct ImDrawData
{
bool Valid; // Only valid after Render() is called and before the next NewFrame() is called.
ImDrawList** CmdLists;
int CmdListsCount;
int TotalVtxCount; // For convenience, sum of all cmd_lists vtx_buffer.Size
int TotalIdxCount; // For convenience, sum of all cmd_lists idx_buffer.Size
ImDrawList** CmdLists; // Array of ImDrawList* to render. The ImDrawList are owned by ImGuiContext and only pointed to from here.
int CmdListsCount; // Number of ImDrawList* to render
int TotalIdxCount; // For convenience, sum of all ImDrawList's IdxBuffer.Size
int TotalVtxCount; // For convenience, sum of all ImDrawList's VtxBuffer.Size
// Functions
ImDrawData() { Clear(); }
void Clear() { Valid = false; CmdLists = NULL; CmdListsCount = TotalVtxCount = TotalIdxCount = 0; } // Draw lists are owned by the ImGuiContext and only pointed to here.
IMGUI_API void DeIndexAllBuffers(); // For backward compatibility or convenience: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
IMGUI_API void ScaleClipRects(const ImVec2& sc); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
ImDrawData() { Valid = false; Clear(); }
~ImDrawData() { Clear(); }
void Clear() { Valid = false; CmdLists = NULL; CmdListsCount = TotalVtxCount = TotalIdxCount = 0; } // The ImDrawList are owned by ImGuiContext!
IMGUI_API void DeIndexAllBuffers(); // Helper to convert all buffers from indexed to non-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
IMGUI_API void ScaleClipRects(const ImVec2& sc); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
};
struct ImFontConfig