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Android: restore main-window EGL surface recreation (#4055)

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Use the main swap-chain native window on Android EGL reset so a replacement ANativeWindow can receive a new EGLSurface without destroying the existing EGLContext and GPU resources.

Forward native-window lifecycle events through the Android example event queue and include the current window in its reset descriptor. Document Android main-window rebinding support.

Restores the intent of #796 after the example harness platform-data removal (72cbe8327) and swap-chain API refactor (#3959).
This commit is contained in:
Thomas Edvalson
2026-10-16 08:47:05 -07:00
committed by GitHub
parent fd541f0586
commit 99b7977fe2
4 changed files with 33 additions and 1 deletions
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examples/common/entry/entry.cpp
+20
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@@ -29,6 +29,9 @@ namespace entry
static uint32_t s_width = ENTRY_DEFAULT_WIDTH;
static uint32_t s_height = ENTRY_DEFAULT_HEIGHT;
static bool s_exit = false;
#if BX_PLATFORM_ANDROID
extern WindowState s_window[ENTRY_CONFIG_MAX_WINDOWS];
#endif // BX_PLATFORM_ANDROID
static void resetMainWindow(uint32_t _width, uint32_t _height, uint32_t _reset)
{
@@ -45,6 +48,9 @@ namespace entry
swapChain.width = _width;
swapChain.height = _height;
swapChain.flags = _reset & kSwapChainFlags;
#if BX_PLATFORM_ANDROID
swapChain.nwh = s_window[0].m_nwh;
#endif // BX_PLATFORM_ANDROID
bgfx::reset(_reset & ~kSwapChainFlags, &swapChain);
}
@@ -902,6 +908,20 @@ restart:
break;
case Event::Window:
#if BX_PLATFORM_ANDROID
{
const WindowEvent* window = static_cast<const WindowEvent*>(ev);
if (window->m_handle.idx == 0)
{
s_window[0].m_nwh = window->m_nwh;
if (NULL != window->m_nwh)
{
handle = window->m_handle;
needReset = true;
}
}
}
#endif // BX_PLATFORM_ANDROID
break;
case Event::Suspend: