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Wayland: Fix reporting of monitor scale changes

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Content scale events would be emitted when a window surface entered or
left an output, but not when one of a window's current outputs had its
scale changed.

(cherry picked from commit e37ba80b13)
This commit is contained in:
Camilla Löwy 2022-06-14 18:46:47 +02:00
parent 557da4cdc4
commit 48e0e0acf5
4 changed files with 18 additions and 3 deletions
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2
README.md
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@ -172,6 +172,8 @@ information on what to include when reporting a bug.
changed
- [Wayland] Bugfix: `glfwTerminate` would segfault if any monitor had changed
scale
- [Wayland] Bugfix: Window content scale events were not emitted when monitor
scale changed
## Contact

12
src/wl_monitor.c
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@ -111,6 +111,18 @@ static void outputHandleScale(void* userData,
struct _GLFWmonitor* monitor = userData;
monitor->wl.scale = factor;
for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)
{
for (int i = 0; i < window->wl.monitorsCount; i++)
{
if (window->wl.monitors[i] == monitor)
{
_glfwUpdateContentScaleWayland(window);
break;
}
}
}
}
#ifdef WL_OUTPUT_NAME_SINCE_VERSION

1
src/wl_platform.h
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@ -358,6 +358,7 @@ typedef struct _GLFWcursorWayland
} _GLFWcursorWayland;
void _glfwAddOutputWayland(uint32_t name, uint32_t version);
void _glfwUpdateContentScaleWayland(_GLFWwindow* window);
GLFWbool _glfwInputTextWayland(_GLFWwindow* window, uint32_t scancode);
void _glfwAddSeatListenerWayland(struct wl_seat* seat);

6
src/wl_window.c
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@ -376,7 +376,7 @@ static void resizeWindow(_GLFWwindow* window)
wl_surface_commit(window->wl.decorations.bottom.surface);
}
static void checkScaleChange(_GLFWwindow* window)
void _glfwUpdateContentScaleWayland(_GLFWwindow* window)
{
if (_glfw.wl.compositorVersion < WL_SURFACE_SET_BUFFER_SCALE_SINCE_VERSION)
return;
@ -414,7 +414,7 @@ static void surfaceHandleEnter(void* userData,
window->wl.monitors[window->wl.monitorsCount++] = monitor;
checkScaleChange(window);
_glfwUpdateContentScaleWayland(window);
}
static void surfaceHandleLeave(void* userData,
@ -435,7 +435,7 @@ static void surfaceHandleLeave(void* userData,
}
window->wl.monitors[--window->wl.monitorsCount] = NULL;
checkScaleChange(window);
_glfwUpdateContentScaleWayland(window);
}
static const struct wl_surface_listener surfaceListener =