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Made EndFrame() assertion for key modifiers being unchanged during the frame more lenient. (#3575)

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ocornut 2020-11-11 18:07:29 +01:00
parent a3f79104df
commit dcfb986fa8
2 changed files with 10 additions and 3 deletions
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3
docs/CHANGELOG.txt
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@ -71,6 +71,9 @@ Other Changes:
- Misc: Replaced UTF-8 decoder by branchless one by Christopher Wellons (30~40% faster). [@rokups] - Misc: Replaced UTF-8 decoder by branchless one by Christopher Wellons (30~40% faster). [@rokups]
Super minor fix handling incomplete UTF-8 contents: if input does not contain enough bytes, decoder Super minor fix handling incomplete UTF-8 contents: if input does not contain enough bytes, decoder
returns IM_UNICODE_CODEPOINT_INVALID and consume remaining bytes (vs old decoded consumed only 1 byte). returns IM_UNICODE_CODEPOINT_INVALID and consume remaining bytes (vs old decoded consumed only 1 byte).
- Misc: Made EndFrame() assertion for key modifiers being unchanged during the frame (added in 1.76) more
lenient, allowing full mid-frame releases. This is to accommodate the use of mid-frame modal native
windows calls, which leads backends such as GLFW to send key clearing events on focus loss. (#3575)
- Backends: OpenGL3: Use glGetString(GL_VERSION) query instead of glGetIntegerv(GL_MAJOR_VERSION, ...) - Backends: OpenGL3: Use glGetString(GL_VERSION) query instead of glGetIntegerv(GL_MAJOR_VERSION, ...)
when the later returns zero (e.g. Desktop GL 2.x). (#3530) [@xndcn] when the later returns zero (e.g. Desktop GL 2.x). (#3530) [@xndcn]
- Backends: OpenGL3: Backup and restore GL_PRIMITIVE_RESTART state. (#3544) [@Xipiryon] - Backends: OpenGL3: Backup and restore GL_PRIMITIVE_RESTART state. (#3544) [@Xipiryon]

10
imgui.cpp
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@ -6905,9 +6905,13 @@ static void ImGui::ErrorCheckEndFrameSanityChecks()
// Verify that io.KeyXXX fields haven't been tampered with. Key mods should not be modified between NewFrame() and EndFrame() // Verify that io.KeyXXX fields haven't been tampered with. Key mods should not be modified between NewFrame() and EndFrame()
// One possible reason leading to this assert is that your backends update inputs _AFTER_ NewFrame(). // One possible reason leading to this assert is that your backends update inputs _AFTER_ NewFrame().
const ImGuiKeyModFlags expected_key_mod_flags = GetMergedKeyModFlags(); // It is known that when some modal native windows called mid-frame takes focus away, some backends such as GLFW will
IM_ASSERT(g.IO.KeyMods == expected_key_mod_flags && "Mismatching io.KeyCtrl/io.KeyShift/io.KeyAlt/io.KeySuper vs io.KeyMods"); // send key release events mid-frame. This would normally trigger this assertion and lead to sheared inputs.
IM_UNUSED(expected_key_mod_flags); // We silently accommodate for this case by ignoring/ the case where all io.KeyXXX modifiers were released (aka key_mod_flags == 0),
// while still correctly asserting on mid-frame key press events.
const ImGuiKeyModFlags key_mod_flags = GetMergedKeyModFlags();
IM_ASSERT((key_mod_flags == 0 || g.IO.KeyMods == key_mod_flags) && "Mismatching io.KeyCtrl/io.KeyShift/io.KeyAlt/io.KeySuper vs io.KeyMods");
IM_UNUSED(key_mod_flags);
// Report when there is a mismatch of Begin/BeginChild vs End/EndChild calls. Important: Remember that the Begin/BeginChild API requires you // Report when there is a mismatch of Begin/BeginChild vs End/EndChild calls. Important: Remember that the Begin/BeginChild API requires you
// to always call End/EndChild even if Begin/BeginChild returns false! (this is unfortunately inconsistent with most other Begin* API). // to always call End/EndChild even if Begin/BeginChild returns false! (this is unfortunately inconsistent with most other Begin* API).