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ImFont: RenderText() useful directly without ImDrawList::AddText().. Changed prototype. Reserving vertices after skipping non-visible lead.

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ocornut
2016-04-23 11:09:56 +02:00
parent fe73a23cf5
commit 44fb99542f
3 changed files with 28 additions and 32 deletions
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6
imgui.cpp
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@ -2339,9 +2339,13 @@ static void AddDrawListToRenderList(ImVector<ImDrawList*>& out_render_list, ImDr
return;
}
// Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
IM_ASSERT(draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size);
IM_ASSERT(draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size);
IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size);
// Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = 2 bytes = 64K vertices)
// If this assert triggers because you are drawing lots of stuff manually, A) workaround by calling BeginChild()/EndChild() to put your draw commands in multiple draw lists, B) #define ImDrawIdx to a 'unsigned int' in imconfig.h and render accordingly.
IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size); // Sanity check. Bug or mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
IM_ASSERT((int64_t)draw_list->_VtxCurrentIdx <= ((int64_t)1L << (sizeof(ImDrawIdx)*8))); // Too many vertices in same ImDrawList. See comment above.
out_render_list.push_back(draw_list);