1 /**************************************************************************
3 * Copyright 2008-2009 Vmware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 #include "pipe/p_format.h"
31 #include "pipe/p_screen.h"
32 #include "util/u_format.h"
33 #include "util/u_memory.h"
34 #include "state_tracker/st_api.h"
37 #include "stw_framebuffer.h"
38 #include "stw_device.h"
39 #include "stw_winsys.h"
41 #include "stw_context.h"
46 * Search the framebuffer with the matching HWND while holding the
47 * stw_dev::fb_mutex global lock.
49 static INLINE
struct stw_framebuffer
*
50 stw_framebuffer_from_hwnd_locked(
53 struct stw_framebuffer
*fb
;
55 for (fb
= stw_dev
->fb_head
; fb
!= NULL
; fb
= fb
->next
)
56 if (fb
->hWnd
== hwnd
) {
57 pipe_mutex_lock(fb
->mutex
);
66 * Destroy this framebuffer. Both stw_dev::fb_mutex and stw_framebuffer::mutex
67 * must be held, by this order. If there are still references to the
68 * framebuffer, nothing will happen.
71 stw_framebuffer_destroy_locked(
72 struct stw_framebuffer
*fb
)
74 struct stw_framebuffer
**link
;
76 /* check the reference count */
79 pipe_mutex_unlock( fb
->mutex
);
83 link
= &stw_dev
->fb_head
;
85 link
= &(*link
)->next
;
90 if(fb
->shared_surface
)
91 stw_dev
->stw_winsys
->shared_surface_close(stw_dev
->screen
, fb
->shared_surface
);
93 stw_st_destroy_framebuffer_locked(fb
->stfb
);
95 ReleaseDC(fb
->hWnd
, fb
->hDC
);
97 pipe_mutex_unlock( fb
->mutex
);
99 pipe_mutex_destroy( fb
->mutex
);
106 stw_framebuffer_release(
107 struct stw_framebuffer
*fb
)
110 pipe_mutex_unlock( fb
->mutex
);
115 stw_framebuffer_get_size( struct stw_framebuffer
*fb
)
127 assert(fb
->width
&& fb
->height
);
128 assert(fb
->client_rect
.right
== fb
->client_rect
.left
+ fb
->width
);
129 assert(fb
->client_rect
.bottom
== fb
->client_rect
.top
+ fb
->height
);
132 * Get the client area size.
135 if (!GetClientRect(fb
->hWnd
, &client_rect
)) {
139 assert(client_rect
.left
== 0);
140 assert(client_rect
.top
== 0);
141 width
= client_rect
.right
- client_rect
.left
;
142 height
= client_rect
.bottom
- client_rect
.top
;
144 if (width
<= 0 || height
<= 0) {
146 * When the window is minimized GetClientRect will return zeros. Simply
147 * preserve the current window size, until the window is restored or
154 if (width
!= fb
->width
|| height
!= fb
->height
) {
155 fb
->must_resize
= TRUE
;
162 if (ClientToScreen(fb
->hWnd
, &client_pos
) &&
163 GetWindowRect(fb
->hWnd
, &window_rect
)) {
164 fb
->client_rect
.left
= client_pos
.x
- window_rect
.left
;
165 fb
->client_rect
.top
= client_pos
.y
- window_rect
.top
;
168 fb
->client_rect
.right
= fb
->client_rect
.left
+ fb
->width
;
169 fb
->client_rect
.bottom
= fb
->client_rect
.top
+ fb
->height
;
173 debug_printf("%s: hwnd = %p\n", __FUNCTION__
, fb
->hWnd
);
174 debug_printf("%s: client_position = (%li, %li)\n",
175 __FUNCTION__
, client_pos
.x
, client_pos
.y
);
176 debug_printf("%s: window_rect = (%li, %li) - (%li, %li)\n",
178 window_rect
.left
, window_rect
.top
,
179 window_rect
.right
, window_rect
.bottom
);
180 debug_printf("%s: client_rect = (%li, %li) - (%li, %li)\n",
182 fb
->client_rect
.left
, fb
->client_rect
.top
,
183 fb
->client_rect
.right
, fb
->client_rect
.bottom
);
189 * @sa http://msdn.microsoft.com/en-us/library/ms644975(VS.85).aspx
190 * @sa http://msdn.microsoft.com/en-us/library/ms644960(VS.85).aspx
193 stw_call_window_proc(
198 struct stw_tls_data
*tls_data
;
199 PCWPSTRUCT pParams
= (PCWPSTRUCT
)lParam
;
200 struct stw_framebuffer
*fb
;
202 tls_data
= stw_tls_get_data();
206 if (nCode
< 0 || !stw_dev
)
207 return CallNextHookEx(tls_data
->hCallWndProcHook
, nCode
, wParam
, lParam
);
209 if (pParams
->message
== WM_WINDOWPOSCHANGED
)
211 /* We handle WM_WINDOWPOSCHANGED instead of WM_SIZE because according to
212 * http://blogs.msdn.com/oldnewthing/archive/2008/01/15/7113860.aspx
213 * WM_SIZE is generated from WM_WINDOWPOSCHANGED by DefWindowProc so it
214 * can be masked out by the application. */
215 LPWINDOWPOS lpWindowPos
= (LPWINDOWPOS
)pParams
->lParam
;
216 if((lpWindowPos
->flags
& SWP_SHOWWINDOW
) ||
217 !(lpWindowPos
->flags
& SWP_NOMOVE
) ||
218 !(lpWindowPos
->flags
& SWP_NOSIZE
)) {
219 fb
= stw_framebuffer_from_hwnd( pParams
->hwnd
);
221 /* Size in WINDOWPOS includes the window frame, so get the size
222 * of the client area via GetClientRect. */
223 stw_framebuffer_get_size(fb
);
224 stw_framebuffer_release(fb
);
228 else if (pParams
->message
== WM_DESTROY
) {
229 pipe_mutex_lock( stw_dev
->fb_mutex
);
230 fb
= stw_framebuffer_from_hwnd_locked( pParams
->hwnd
);
232 stw_framebuffer_destroy_locked(fb
);
233 pipe_mutex_unlock( stw_dev
->fb_mutex
);
236 return CallNextHookEx(tls_data
->hCallWndProcHook
, nCode
, wParam
, lParam
);
240 struct stw_framebuffer
*
241 stw_framebuffer_create(
246 struct stw_framebuffer
*fb
;
247 const struct stw_pixelformat_info
*pfi
;
249 /* We only support drawing to a window. */
250 hWnd
= WindowFromDC( hdc
);
254 fb
= CALLOC_STRUCT( stw_framebuffer
);
258 /* Applications use, create, destroy device contexts, so the hdc passed is. We create our own DC
259 * because we need one for single buffered visuals.
261 fb
->hDC
= GetDC(hWnd
);
264 fb
->iPixelFormat
= iPixelFormat
;
266 fb
->pfi
= pfi
= stw_pixelformat_get_info( iPixelFormat
- 1 );
267 fb
->stfb
= stw_st_create_framebuffer( fb
);
276 * Windows can be sometimes have zero width and or height, but we ensure
277 * a non-zero framebuffer size at all times.
280 fb
->must_resize
= TRUE
;
283 fb
->client_rect
.left
= 0;
284 fb
->client_rect
.top
= 0;
285 fb
->client_rect
.right
= fb
->client_rect
.left
+ fb
->width
;
286 fb
->client_rect
.bottom
= fb
->client_rect
.top
+ fb
->height
;
288 stw_framebuffer_get_size(fb
);
290 pipe_mutex_init( fb
->mutex
);
292 /* This is the only case where we lock the stw_framebuffer::mutex before
293 * stw_dev::fb_mutex, since no other thread can know about this framebuffer
294 * and we must prevent any other thread from destroying it before we return.
296 pipe_mutex_lock( fb
->mutex
);
298 pipe_mutex_lock( stw_dev
->fb_mutex
);
299 fb
->next
= stw_dev
->fb_head
;
300 stw_dev
->fb_head
= fb
;
301 pipe_mutex_unlock( stw_dev
->fb_mutex
);
307 * Have ptr reference fb. The referenced framebuffer should be locked.
310 stw_framebuffer_reference(
311 struct stw_framebuffer
**ptr
,
312 struct stw_framebuffer
*fb
)
314 struct stw_framebuffer
*old_fb
= *ptr
;
322 pipe_mutex_lock(stw_dev
->fb_mutex
);
324 pipe_mutex_lock(old_fb
->mutex
);
325 stw_framebuffer_destroy_locked(old_fb
);
327 pipe_mutex_unlock(stw_dev
->fb_mutex
);
335 * Update the framebuffer's size if necessary.
338 stw_framebuffer_update(
339 struct stw_framebuffer
*fb
)
345 /* XXX: It would be nice to avoid checking the size again -- in theory
346 * stw_call_window_proc would have cought the resize and stored the right
347 * size already, but unfortunately threads created before the DllMain is
348 * called don't get a DLL_THREAD_ATTACH notification, and there is no way
349 * to know of their existing without using the not very portable PSAPI.
351 stw_framebuffer_get_size(fb
);
356 stw_framebuffer_cleanup( void )
358 struct stw_framebuffer
*fb
;
359 struct stw_framebuffer
*next
;
364 pipe_mutex_lock( stw_dev
->fb_mutex
);
366 fb
= stw_dev
->fb_head
;
370 pipe_mutex_lock(fb
->mutex
);
371 stw_framebuffer_destroy_locked(fb
);
375 stw_dev
->fb_head
= NULL
;
377 pipe_mutex_unlock( stw_dev
->fb_mutex
);
382 * Given an hdc, return the corresponding stw_framebuffer.
384 static INLINE
struct stw_framebuffer
*
385 stw_framebuffer_from_hdc_locked(
390 hwnd
= WindowFromDC(hdc
);
395 return stw_framebuffer_from_hwnd_locked(hwnd
);
400 * Given an hdc, return the corresponding stw_framebuffer.
402 struct stw_framebuffer
*
403 stw_framebuffer_from_hdc(
406 struct stw_framebuffer
*fb
;
411 pipe_mutex_lock( stw_dev
->fb_mutex
);
412 fb
= stw_framebuffer_from_hdc_locked(hdc
);
413 pipe_mutex_unlock( stw_dev
->fb_mutex
);
420 * Given an hdc, return the corresponding stw_framebuffer.
422 struct stw_framebuffer
*
423 stw_framebuffer_from_hwnd(
426 struct stw_framebuffer
*fb
;
428 pipe_mutex_lock( stw_dev
->fb_mutex
);
429 fb
= stw_framebuffer_from_hwnd_locked(hwnd
);
430 pipe_mutex_unlock( stw_dev
->fb_mutex
);
443 struct stw_framebuffer
*fb
;
448 index
= (uint
) iPixelFormat
- 1;
449 count
= stw_pixelformat_get_extended_count();
453 fb
= stw_framebuffer_from_hdc_locked(hdc
);
455 /* SetPixelFormat must be called only once */
456 stw_framebuffer_release( fb
);
460 fb
= stw_framebuffer_create(hdc
, iPixelFormat
);
465 stw_framebuffer_release( fb
);
467 /* Some applications mistakenly use the undocumented wglSetPixelFormat
468 * function instead of SetPixelFormat, so we call SetPixelFormat here to
469 * avoid opengl32.dll's wglCreateContext to fail */
470 if (GetPixelFormat(hdc
) == 0) {
471 SetPixelFormat(hdc
, iPixelFormat
, NULL
);
482 int iPixelFormat
= 0;
483 struct stw_framebuffer
*fb
;
485 fb
= stw_framebuffer_from_hdc(hdc
);
487 iPixelFormat
= fb
->iPixelFormat
;
488 stw_framebuffer_release(fb
);
496 DrvPresentBuffers(HDC hdc
, PGLPRESENTBUFFERSDATA data
)
498 struct stw_framebuffer
*fb
;
499 struct pipe_screen
*screen
;
500 struct pipe_resource
*res
;
505 fb
= stw_framebuffer_from_hdc( hdc
);
509 screen
= stw_dev
->screen
;
511 res
= (struct pipe_resource
*)data
->pPrivateData
;
513 if(data
->hSharedSurface
!= fb
->hSharedSurface
) {
514 if(fb
->shared_surface
) {
515 stw_dev
->stw_winsys
->shared_surface_close(screen
, fb
->shared_surface
);
516 fb
->shared_surface
= NULL
;
519 fb
->hSharedSurface
= data
->hSharedSurface
;
521 if(data
->hSharedSurface
&&
522 stw_dev
->stw_winsys
->shared_surface_open
) {
523 fb
->shared_surface
= stw_dev
->stw_winsys
->shared_surface_open(screen
, fb
->hSharedSurface
);
527 if(fb
->shared_surface
) {
528 stw_dev
->stw_winsys
->compose(screen
,
532 data
->PresentHistoryToken
);
535 stw_dev
->stw_winsys
->present( screen
, res
, hdc
);
538 stw_framebuffer_update(fb
);
539 stw_notify_current_locked(fb
);
541 stw_framebuffer_release(fb
);
548 * Queue a composition.
550 * It will drop the lock on success.
553 stw_framebuffer_present_locked(HDC hdc
,
554 struct stw_framebuffer
*fb
,
555 struct pipe_resource
*res
)
557 if(stw_dev
->callbacks
.wglCbPresentBuffers
&&
558 stw_dev
->stw_winsys
->compose
) {
559 GLCBPRESENTBUFFERSDATA data
;
561 memset(&data
, 0, sizeof data
);
564 data
.AdapterLuid
= stw_dev
->AdapterLuid
;
565 data
.rect
= fb
->client_rect
;
566 data
.pPrivateData
= (void *)res
;
568 stw_notify_current_locked(fb
);
569 stw_framebuffer_release(fb
);
571 return stw_dev
->callbacks
.wglCbPresentBuffers(hdc
, &data
);
574 struct pipe_screen
*screen
= stw_dev
->screen
;
576 stw_dev
->stw_winsys
->present( screen
, res
, hdc
);
578 stw_framebuffer_update(fb
);
579 stw_notify_current_locked(fb
);
580 stw_framebuffer_release(fb
);
591 struct stw_framebuffer
*fb
;
596 fb
= stw_framebuffer_from_hdc( hdc
);
600 if (!(fb
->pfi
->pfd
.dwFlags
& PFD_DOUBLEBUFFER
)) {
601 stw_framebuffer_release(fb
);
605 stw_flush_current_locked(fb
);
607 return stw_st_swap_framebuffer_locked(hdc
, fb
->stfb
);
616 if(fuPlanes
& WGL_SWAP_MAIN_PLANE
)
617 return DrvSwapBuffers(hdc
);