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wgl: Listen to WM_WINDOWPOSCHANGED instead of WM_SIZE messages.

Browse source 
According to
http://blogs.msdn.com/oldnewthing/archive/2008/01/15/7113860.aspx
WM_SIZE is generated from WM_WINDOWPOSCHANGED by DefWindowProc so it
can be masked out by the application.

Also there were some weird bogus WM_SIZE 0x0 messages when starting
sharedtex_mt which we don't get like this.
This commit is contained in:
José Fonseca 2009-07-06 17:08:37 +01:00
parent fc6e02ce62
commit 5470a67335
1 changed files with 57 additions and 56 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

113
src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
View file

@ -80,62 +80,7 @@ stw_framebuffer_destroy_locked(
}
/**
* @sa http://msdn.microsoft.com/en-us/library/ms644975(VS.85).aspx
* @sa http://msdn.microsoft.com/en-us/library/ms644960(VS.85).aspx
*/
LRESULT CALLBACK
stw_call_window_proc(
int nCode,
WPARAM wParam,
LPARAM lParam )
{
struct stw_tls_data *tls_data;
PCWPSTRUCT pParams = (PCWPSTRUCT)lParam;
tls_data = stw_tls_get_data();
if(!tls_data)
return 0;
if (nCode < 0)
return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
if (pParams->message == WM_SIZE && pParams->wParam != SIZE_MINIMIZED) {
struct stw_framebuffer *fb;
pipe_mutex_lock( stw_dev->mutex );
fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
pipe_mutex_unlock( stw_dev->mutex );
if(fb) {
unsigned width = LOWORD( pParams->lParam );
unsigned height = HIWORD( pParams->lParam );
pipe_mutex_lock( fb->mutex );
fb->must_resize = TRUE;
fb->width = width;
fb->height = height;
pipe_mutex_unlock( fb->mutex );
}
}
if (pParams->message == WM_DESTROY) {
struct stw_framebuffer *fb;
pipe_mutex_lock( stw_dev->mutex );
fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
if(fb)
stw_framebuffer_destroy_locked(fb);
pipe_mutex_unlock( stw_dev->mutex );
}
return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
}
static void
static INLINE void
stw_framebuffer_get_size( struct stw_framebuffer *fb )
{
unsigned width, height;
@ -160,6 +105,62 @@ stw_framebuffer_get_size( struct stw_framebuffer *fb )
}
/**
* @sa http://msdn.microsoft.com/en-us/library/ms644975(VS.85).aspx
* @sa http://msdn.microsoft.com/en-us/library/ms644960(VS.85).aspx
*/
LRESULT CALLBACK
stw_call_window_proc(
int nCode,
WPARAM wParam,
LPARAM lParam )
{
struct stw_tls_data *tls_data;
PCWPSTRUCT pParams = (PCWPSTRUCT)lParam;
struct stw_framebuffer *fb;
tls_data = stw_tls_get_data();
if(!tls_data)
return 0;
if (nCode < 0)
return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
if (pParams->message == WM_WINDOWPOSCHANGED) {
/* We handle WM_WINDOWPOSCHANGED instead of WM_SIZE because according to
* http://blogs.msdn.com/oldnewthing/archive/2008/01/15/7113860.aspx
* WM_SIZE is generated from WM_WINDOWPOSCHANGED by DefWindowProc so it
* can be masked out by the application. */
LPWINDOWPOS lpWindowPos = (LPWINDOWPOS)pParams->lParam;
if((lpWindowPos->flags & SWP_SHOWWINDOW) ||
!(lpWindowPos->flags & SWP_NOSIZE)) {
pipe_mutex_lock( stw_dev->mutex );
fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
pipe_mutex_unlock( stw_dev->mutex );
if(fb) {
pipe_mutex_lock( fb->mutex );
/* Size in WINDOWPOS includes the window frame, so get the size
* of the client area via GetClientRect. */
stw_framebuffer_get_size(fb);
pipe_mutex_unlock( fb->mutex );
}
}
}
else if (pParams->message == WM_DESTROY) {
pipe_mutex_lock( stw_dev->mutex );
fb = stw_framebuffer_from_hwnd_locked( pParams->hwnd );
if(fb)
stw_framebuffer_destroy_locked(fb);
pipe_mutex_unlock( stw_dev->mutex );
}
return CallNextHookEx(tls_data->hCallWndProcHook, nCode, wParam, lParam);
}
/**
* Create a new framebuffer object which will correspond to the given HDC.
*/