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Tables, ImDrawListSplitter: Fixed erroneously stripping trailing ImDrawList::AddCallback().(#4843, #4844)

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Jonathan Hoffstadt 2021-12-30 14:37:31 -06:00 committed by ocornut
parent 41e39ea6e1
commit 83d22f4e48
3 changed files with 4 additions and 4 deletions
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2
docs/CHANGELOG.txt
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@ -35,6 +35,8 @@ HOW TO UPDATE?
VERSION 1.87 WIP (In Progress)
-----------------------------------------------------------------------
- Tables, ImDrawListSplitter: Fixed erroneously stripping trailing ImDrawList::AddCallback() when submitted in
last column or last channel and when there are no other drawing operation. (#4843, #4844) [@hoffstadt]
- Backends: OpenGL3: Fixed a buffer overflow in imgui_impl_opengl3_loader.h init (added in 1.86). (#4468, #4830) [@dymk]
It would generally not have noticeable side-effect at runtime but would be detected by runtime checkers.
- Backends: Metal: Added Apple Metal C++ API support. (#4824, #4746) [@luigifcruz]

4
imgui_draw.cpp
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@ -1733,9 +1733,7 @@ void ImDrawListSplitter::Merge(ImDrawList* draw_list)
for (int i = 1; i < _Count; i++)
{
ImDrawChannel& ch = _Channels[i];
// Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
ch._CmdBuffer.pop_back();
if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)

2
imgui_tables.cpp
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@ -2353,7 +2353,7 @@ void ImGui::TableMergeDrawChannels(ImGuiTable* table)
// Don't attempt to merge if there are multiple draw calls within the column
ImDrawChannel* src_channel = &splitter->_Channels[channel_no];
if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0)
if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0 && src_channel->_CmdBuffer.back().UserCallback != NULL) // Equivalent of PopUnusedDrawCmd()
src_channel->_CmdBuffer.pop_back();
if (src_channel->_CmdBuffer.Size != 1)
continue;