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Win32: Clean up DWM detection

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This commit is contained in:
Camilla Löwy
2018-08-12 13:58:30 +02:00
parent d4cbe451fc
commit a67d8afbd4
3 changed files with 37 additions and 26 deletions
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src/wgl_context.c
+25 -9
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@@ -256,12 +256,20 @@ static void makeContextCurrentWGL(_GLFWwindow* window)
static void swapBuffersWGL(_GLFWwindow* window)
{
// HACK: Use DwmFlush when desktop composition is enabled
if (_glfwIsCompositionEnabledWin32() && !window->monitor)
if (!window->monitor)
{
int count = abs(window->context.wgl.interval);
while (count--)
DwmFlush();
if (IsWindowsVistaOrGreater())
{
BOOL enabled;
// HACK: Use DwmFlush when desktop composition is enabled
if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
{
int count = abs(window->context.wgl.interval);
while (count--)
DwmFlush();
}
}
}
SwapBuffers(window->context.wgl.dc);
@@ -273,10 +281,18 @@ static void swapIntervalWGL(int interval)
window->context.wgl.interval = interval;
// HACK: Disable WGL swap interval when desktop composition is enabled to
// avoid interfering with DWM vsync
if (_glfwIsCompositionEnabledWin32() && !window->monitor)
interval = 0;
if (!window->monitor)
{
if (IsWindowsVistaOrGreater())
{
BOOL enabled;
// HACK: Disable WGL swap interval when desktop composition is enabled to
// avoid interfering with DWM vsync
if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
interval = 0;
}
}
if (_glfw.wgl.EXT_swap_control)
_glfw.wgl.SwapIntervalEXT(interval);