|
1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 #include "directgdidriverprocessstate.h" |
|
17 |
|
18 |
|
19 const TInt KMaxProcessStateHeapSize = 0x100000; |
|
20 |
|
21 |
|
22 /** |
|
23 Reports any error that occurs. |
|
24 This is #defined so that we retain correct line information for the debug stream. |
|
25 */ |
|
26 #define ProcessEglError(err) \ |
|
27 { \ |
|
28 const EGLint eglError = eglGetError(); \ |
|
29 if (eglError == EGL_BAD_ALLOC) \ |
|
30 err = KErrNoMemory; \ |
|
31 else if (eglError == EGL_CONTEXT_LOST) \ |
|
32 err = KErrDied; \ |
|
33 else \ |
|
34 err = KErrGeneral; \ |
|
35 TBuf16<256> _message; \ |
|
36 _message.Format(_L16("EGL Error: %x\n"), eglError); \ |
|
37 GRAPHICS_LOGD_DEBUG(_message); \ |
|
38 } |
|
39 /** |
|
40 Image source data constructor. |
|
41 @param aSgImageId The unique identifier of the RSgImage used to create the EGLImage and VGImage. |
|
42 @param aEglImage The EGLImage created from the RSgImage. |
|
43 @param aVgImage The VGImage created from aEglImage. |
|
44 @panic DGDIAdapter 48, if invalid images are passed in. |
|
45 */ |
|
46 CImageSourceData::CImageSourceData(const TSgDrawableId& aSgImageId, EGLImageKHR aEglImage, VGImage aVgImage) : |
|
47 iSgImageId(aSgImageId), |
|
48 iEglImage(aEglImage), |
|
49 iVgImage(aVgImage) |
|
50 { |
|
51 GRAPHICS_ASSERT_DEBUG(iEglImage != EGL_NO_IMAGE_KHR, EDirectGdiPanicImageSourceDataConstructorError); |
|
52 GRAPHICS_ASSERT_DEBUG(iVgImage != VG_INVALID_HANDLE, EDirectGdiPanicImageSourceDataConstructorError); |
|
53 } |
|
54 |
|
55 /** |
|
56 Image source data destructor. |
|
57 @panic DGDIAdapter 49, if reference count is not zero when this funtion is called. |
|
58 */ |
|
59 CImageSourceData::~CImageSourceData() |
|
60 { |
|
61 GRAPHICS_ASSERT_ALWAYS(iRefCount == 0, EDirectGdiPanicImageSourceDataRefCountError); |
|
62 } |
|
63 |
|
64 XDirectGdiDriverProcessState::XDirectGdiDriverProcessState() |
|
65 { |
|
66 iCreateMutexErr = iMutex.CreateLocal(); |
|
67 } |
|
68 |
|
69 |
|
70 /** |
|
71 Creates a heap to store EGL and VG images. This heap will be shared between threads in |
|
72 the current process. This is necessary as EGL images are shared between threads, and an attempt |
|
73 to create an EGL image from a RSgImage in two different threads would fail if the EGL image was not |
|
74 also shared. Also gets function pointers to image creation and destruction methods in EGL and saves |
|
75 them for use later. Note that Initialize() must be called before you call CreateVgImage() or |
|
76 DestroyVgImage(). |
|
77 |
|
78 @pre The client has called MutexCreationStatus() and checked for KErrNone. |
|
79 |
|
80 @param aDisplay The current EGL display handle |
|
81 |
|
82 @return KErrNone if successful, KErrNoMemory if we fail to create the heap, KErrGeneral |
|
83 if we encounter an EGL error, otherwise one of the system-wide error codes. |
|
84 */ |
|
85 TInt XDirectGdiDriverProcessState::Initialize(EGLDisplay aDisplay) |
|
86 { |
|
87 iMutex.Wait(); |
|
88 |
|
89 // No need to re-initialize everything if we have already been initialized. |
|
90 TInt err = KErrNone; |
|
91 if (iLocalHeap == NULL) |
|
92 { |
|
93 // Create a heap that will be used to store EGLImages and VGImages that are created |
|
94 // when the driver creates a source image (in CDirectGdiDriverImpl::CreateDrawableSource()) |
|
95 iLocalHeap = UserHeap::ChunkHeap(NULL, 0, KMaxProcessStateHeapSize); |
|
96 if (iLocalHeap == NULL) |
|
97 { |
|
98 err = KErrNoMemory; |
|
99 } |
|
100 } |
|
101 |
|
102 // Check the availability of the required EGL/VG extensions |
|
103 if (err == KErrNone) |
|
104 { |
|
105 if (!iCheckedExtensionsAvailable) |
|
106 { |
|
107 err = CheckAllEglExtensions(aDisplay); |
|
108 iCheckedExtensionsAvailable = ETrue; |
|
109 |
|
110 #ifdef _DEBUG_DIRECTGDI |
|
111 RDebug::Printf("VG_VENDOR: %s\n", vgGetString(VG_VENDOR)); |
|
112 RDebug::Printf("VG_RENDERER : %s\n", vgGetString(VG_RENDERER)); |
|
113 RDebug::Printf("VG_VERSION : %s\n", vgGetString(VG_VERSION)); |
|
114 #endif |
|
115 } |
|
116 } |
|
117 |
|
118 // Get function pointers for EGLImage creation and destruction and VGImage creation EGL functions. |
|
119 // These need to be refreshed every time this process state is initialised as it cannot be guaranteed |
|
120 // that the function pointers will remain the same after this process state was last closed |
|
121 // (and EGL was terminated). |
|
122 if (err == KErrNone) |
|
123 { |
|
124 iPfnEglCreateImageKHR = reinterpret_cast<TeglCreateImageKHRTypefPtr>(eglGetProcAddress("eglCreateImageKHR")); |
|
125 if (iPfnEglCreateImageKHR == NULL) |
|
126 { |
|
127 ProcessEglError(err); |
|
128 err = KErrNotSupported; |
|
129 } |
|
130 } |
|
131 |
|
132 if (err == KErrNone) |
|
133 { |
|
134 iPfnEglDestroyImageKHR = reinterpret_cast<TeglDestroyImageKHRTypefPtr>(eglGetProcAddress("eglDestroyImageKHR")); |
|
135 if (iPfnEglDestroyImageKHR == NULL) |
|
136 { |
|
137 ProcessEglError(err); |
|
138 err = KErrNotSupported; |
|
139 } |
|
140 } |
|
141 |
|
142 if (err == KErrNone) |
|
143 { |
|
144 iPfnVgCreateImageTargetKHR = reinterpret_cast<TvgCreateEGLImageTargetKHRTypefPtr>(eglGetProcAddress("vgCreateEGLImageTargetKHR")); |
|
145 if (iPfnVgCreateImageTargetKHR == NULL) |
|
146 { |
|
147 ProcessEglError(err); |
|
148 err = KErrNotSupported; |
|
149 } |
|
150 } |
|
151 iMutex.Signal(); |
|
152 |
|
153 return err; |
|
154 } |
|
155 |
|
156 /** |
|
157 Destructor, asserts that the instance count is zero, and the count of images stored is zero. |
|
158 |
|
159 @panic DGDIAdapter 50, if the instance count is not zero (debug-only). |
|
160 @panic DGDIAdapter 51, if the image count is not zero (debug-only). |
|
161 */ |
|
162 XDirectGdiDriverProcessState::~XDirectGdiDriverProcessState() |
|
163 { |
|
164 if (iLocalHeap != NULL) |
|
165 { |
|
166 iLocalHeap->Close(); |
|
167 } |
|
168 iMutex.Close(); |
|
169 |
|
170 GRAPHICS_ASSERT_DEBUG(iDriverInstanceCount == 0, EDirectGdiPanicProcessStateInstanceCountError); |
|
171 GRAPHICS_ASSERT_DEBUG(iImages.Count() == 0, EDirectGdiPanicProcessStateImageCountError); |
|
172 } |
|
173 |
|
174 /** |
|
175 Creates a VGImage from the passed RSgImage. This method first creates a EGLImageKHR from |
|
176 the RSgImage, from which it can create a VGImage. The EGLImageKHR and the VGImage are saved |
|
177 so that they can be shared if a user attempts to create another VGImage from the same RSgImage. |
|
178 If a VGImage has already been created from the passed RSgImage, the existing image is returned |
|
179 instead of a new one being created. This will increment the reference count on that stored image. |
|
180 |
|
181 @param aDisplay The EGL display to associate the image with. |
|
182 @param aVgImageRet A handle to the VGImage created is returned here. |
|
183 @param aSgImage The VGImage will be created from this RSgImage. |
|
184 |
|
185 @pre Initialize() has been called. |
|
186 |
|
187 @return KErrNone if the image is created successfully, KErrGeneral if an EGL error occurs, |
|
188 otherwise one of the system-wide error codes. |
|
189 |
|
190 @panic DGDIAdapter 33, if one of the member EGL function pointers is NULL (debug-only). |
|
191 If this happens it may be that Initialize() has not been called for this process state. |
|
192 @panic DGDIAdapter 36, if aDisplay is EGL_NO_DISPLAY (debug-only). |
|
193 */ |
|
194 TInt XDirectGdiDriverProcessState::CreateVgImage(EGLDisplay aDisplay, VGImage& aVgImageRet, const RSgImage& aSgImage) |
|
195 { |
|
196 VGImage vgImage = VG_INVALID_HANDLE; |
|
197 TInt err = KErrNone; |
|
198 aVgImageRet = VG_INVALID_HANDLE; |
|
199 |
|
200 iMutex.Wait(); |
|
201 // If this image has already been created, just return a handle to the |
|
202 // previously created one. |
|
203 if (ImageExists(aSgImage, vgImage)) |
|
204 { |
|
205 aVgImageRet = vgImage; |
|
206 iMutex.Signal(); |
|
207 return KErrNone; |
|
208 } |
|
209 |
|
210 // If the function pointers are NULL, Initialize() may not have been called |
|
211 GRAPHICS_ASSERT_DEBUG(iPfnEglCreateImageKHR, EDirectGdiPanicProcessStateNotInitialized); |
|
212 GRAPHICS_ASSERT_DEBUG(iPfnEglDestroyImageKHR, EDirectGdiPanicProcessStateNotInitialized); |
|
213 GRAPHICS_ASSERT_DEBUG(iPfnVgCreateImageTargetKHR, EDirectGdiPanicProcessStateNotInitialized); |
|
214 GRAPHICS_ASSERT_DEBUG(aDisplay != EGL_NO_DISPLAY, EDirectGdiPanicNoDisplay); |
|
215 |
|
216 // Create an EGLImage from the passed RSgImage, then create a VGImage from that and |
|
217 // assign the VGImage to the newly created source. (The EGL image creation functions |
|
218 // have already been retreived at this stage as function pointers using eglGetProcAddress() |
|
219 // in InitialiseEgl()) |
|
220 |
|
221 // Pass in the preserved attribute. Without this the existing image data could be trashed. |
|
222 EGLint createImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, |
|
223 EGL_NONE}; |
|
224 |
|
225 EGLImageKHR eglImage = iPfnEglCreateImageKHR(aDisplay, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, reinterpret_cast<EGLClientBuffer>(&aSgImage), createImageAttribs); |
|
226 if (eglImage == EGL_NO_IMAGE_KHR) |
|
227 { |
|
228 ProcessEglError(err); |
|
229 } |
|
230 |
|
231 if (err == KErrNone) |
|
232 { |
|
233 vgImage = iPfnVgCreateImageTargetKHR(eglImage); |
|
234 if (vgImage == VG_INVALID_HANDLE) |
|
235 { |
|
236 ProcessEglError(err); |
|
237 } |
|
238 } |
|
239 |
|
240 if (err == KErrNone) |
|
241 { |
|
242 // Add the image to the array of images on the process heap |
|
243 err = AddImage(aSgImage, eglImage, vgImage); |
|
244 } |
|
245 |
|
246 if (err == KErrNone) |
|
247 { |
|
248 aVgImageRet = vgImage; |
|
249 } |
|
250 else |
|
251 { |
|
252 // Clean up |
|
253 if (vgImage != VG_INVALID_HANDLE) |
|
254 { |
|
255 vgDestroyImage(vgImage); |
|
256 } |
|
257 iPfnEglDestroyImageKHR(aDisplay, eglImage); |
|
258 } |
|
259 |
|
260 iMutex.Signal(); |
|
261 |
|
262 return err; |
|
263 } |
|
264 |
|
265 /** |
|
266 Destroys the passed VGImage. Searches for the image in the image array and |
|
267 decrements its reference count if found. Destroys the image when the reference count |
|
268 reaches zero. |
|
269 |
|
270 @param aDisplay The EGLDisplay the VGImage to be destroyed was created with. |
|
271 @param aVgImage A handle to the VGImage to destroy. |
|
272 |
|
273 @return KErrNone if the image is destroyed successfully, otherwise one of the system-wide |
|
274 error codes. |
|
275 |
|
276 @panic DGDIAdapter 33, if the EGL function pointer for destroying a VGImage is NULL (debug-only). |
|
277 */ |
|
278 TInt XDirectGdiDriverProcessState::DestroyVgImage(EGLDisplay aDisplay, VGImage aVgImage) |
|
279 { |
|
280 GRAPHICS_ASSERT_DEBUG(iPfnEglDestroyImageKHR, EDirectGdiPanicProcessStateNotInitialized); |
|
281 |
|
282 iMutex.Wait(); |
|
283 TInt err = RemoveImage(aDisplay, aVgImage); |
|
284 iMutex.Signal(); |
|
285 |
|
286 return err; |
|
287 } |
|
288 |
|
289 /** |
|
290 Increments the instance count. |
|
291 */ |
|
292 void XDirectGdiDriverProcessState::OpenDriver() |
|
293 { |
|
294 iMutex.Wait(); |
|
295 ++iDriverInstanceCount; |
|
296 iMutex.Signal(); |
|
297 } |
|
298 |
|
299 /** |
|
300 Decrements the instance count. |
|
301 If this is the last instance of a DirectGDI driver, the associated EGL display is terminated, and |
|
302 there should be no images left in the array as they should all have been destroyed. |
|
303 |
|
304 @param aDriverEglDisplay An EGLDisplay associated with the driver being closed. If this is the last |
|
305 driver being closed, the display is destroyed. |
|
306 @panic DGDIAdapter 51, if the image count is not zero (debug-only). |
|
307 */ |
|
308 void XDirectGdiDriverProcessState::CloseDriver(EGLDisplay& aDriverEglDisplay) |
|
309 { |
|
310 iMutex.Wait(); |
|
311 if (--iDriverInstanceCount == 0 && aDriverEglDisplay != EGL_NO_DISPLAY) |
|
312 { |
|
313 eglTerminate(aDriverEglDisplay); |
|
314 aDriverEglDisplay = EGL_NO_DISPLAY; |
|
315 // Set the function pointers to NULL as cannot be guaranteed that they will be recreated at the same address |
|
316 // when EGL is next initialised. |
|
317 iPfnEglCreateImageKHR = NULL; |
|
318 iPfnEglDestroyImageKHR = NULL; |
|
319 iPfnVgCreateImageTargetKHR = NULL; |
|
320 GRAPHICS_ASSERT_DEBUG(iImages.Count() == 0, EDirectGdiPanicProcessStateImageCountError); |
|
321 } |
|
322 iMutex.Signal(); |
|
323 } |
|
324 |
|
325 /** |
|
326 Check that the following EGL extensions are available: |
|
327 EGL_SYMBIAN_PIXMAP_TYPE_RSGIMAGE |
|
328 EGL_KHR_image |
|
329 EGL_SYMBIAN_image_preserved |
|
330 |
|
331 According to the spec, OpenVG extensions cannot be checked until a context has been made current, |
|
332 which has not happened at this point, so currently there is no check for VG_KHR_EGL_image extension. |
|
333 |
|
334 @pre eglInitialize() must have been called for the passed EGLDisplay. |
|
335 |
|
336 @param aDisplay The current EGL display handle. |
|
337 |
|
338 @return KErrNone if all the extensions are available, KErrNotSupported if one or more |
|
339 of the extensions are not supported by the EGL driver. |
|
340 */ |
|
341 TInt XDirectGdiDriverProcessState::CheckAllEglExtensions(EGLDisplay aDisplay) const |
|
342 { |
|
343 _LIT8(KEglRSgImage, "EGL_SYMBIAN_PIXMAP_TYPE_RSGIMAGE"); |
|
344 _LIT8(KEglKhrImage, "EGL_KHR_image"); |
|
345 _LIT8(KEglImagePreserved, "EGL_SYMBIAN_image_preserved"); |
|
346 |
|
347 TInt err = CheckForEglExtension(aDisplay, KEglRSgImage); |
|
348 |
|
349 if (err == KErrNone) |
|
350 { |
|
351 err = CheckForEglExtension(aDisplay, KEglKhrImage); |
|
352 } |
|
353 |
|
354 if (err == KErrNone) |
|
355 { |
|
356 err = CheckForEglExtension(aDisplay, KEglImagePreserved); |
|
357 } |
|
358 |
|
359 return err; |
|
360 } |
|
361 |
|
362 /** |
|
363 Checks whether the passed EGL extension string is available with this EGL driver. |
|
364 |
|
365 @param aDisplay The current EGL display handle. |
|
366 @param aExtensionString The EGL extension string to search for. |
|
367 |
|
368 @return KErrNotSupported is the extension string is not found, KErrNone if it is found successfully. |
|
369 */ |
|
370 TInt XDirectGdiDriverProcessState::CheckForEglExtension(EGLDisplay aDisplay, |
|
371 const TDesC8& aExtensionString) const |
|
372 { |
|
373 const TText8* extensions = reinterpret_cast<const TText8*>(eglQueryString(aDisplay, EGL_EXTENSIONS)); |
|
374 |
|
375 TBool found = EFalse; |
|
376 if (extensions) |
|
377 { |
|
378 TPtrC8 ext(extensions); |
|
379 if (ext.Find(aExtensionString) != KErrNotFound) |
|
380 { |
|
381 found = ETrue; |
|
382 } |
|
383 } |
|
384 |
|
385 return (found) ? KErrNone : KErrNotSupported; |
|
386 } |
|
387 |
|
388 /** |
|
389 Checks to see that the passed RSgImage exists in the image array. Increases |
|
390 the reference count on the image if it is found. The calling method should be holding the mutex |
|
391 iMutex open before calling this method. |
|
392 |
|
393 @param aSgImage The RSgImage to check for. |
|
394 @param aVgImageRet The handle of the VGImage found is returned here. |
|
395 |
|
396 @pre The mutex iMutex is held. |
|
397 |
|
398 @return ETrue if the image was found, EFalse otherwise. |
|
399 |
|
400 @panic DGDIAdapter 52, if the mutex has not been opened before calling this method. |
|
401 This panic only happens when _DEBUG_DIRECTGDI is defined. |
|
402 */ |
|
403 TBool XDirectGdiDriverProcessState::ImageExists(const RSgImage& aSgImage, VGImage& aVgImageRet) |
|
404 { |
|
405 #ifdef _DEBUG_DIRECTGDI |
|
406 GRAPHICS_ASSERT_ALWAYS(iMutex.IsHeld(), EDirectGdiPanicImageMutexError); |
|
407 #endif |
|
408 aVgImageRet = VG_INVALID_HANDLE; |
|
409 |
|
410 CImageSourceData* imageData = FindImage(aSgImage); |
|
411 if (imageData) |
|
412 { |
|
413 aVgImageRet = imageData->VgImage(); |
|
414 imageData->Open(); |
|
415 } |
|
416 |
|
417 return (aVgImageRet != VG_INVALID_HANDLE); |
|
418 } |
|
419 |
|
420 /** |
|
421 Searches for an image in the array of images using the passed RSgImage id to find it. |
|
422 The calling method should be holding the images mutex iMutex open before calling this method. |
|
423 |
|
424 @param aSgImage The RSgImage to search for. |
|
425 |
|
426 @pre The mutex iMutex is held. |
|
427 |
|
428 @return Pointer to the CImageSourceData object held in the images array for the passed |
|
429 RSgImage if it is found, NULL if the image is not found. |
|
430 |
|
431 @panic DGDIAdapter 52, if the mutex has not been opened before calling this method. |
|
432 This panic only happens when _DEBUG_DIRECTGDI is defined. |
|
433 */ |
|
434 CImageSourceData* XDirectGdiDriverProcessState::FindImage(const RSgImage& aSgImage) |
|
435 { |
|
436 #ifdef _DEBUG_DIRECTGDI |
|
437 GRAPHICS_ASSERT_ALWAYS(iMutex.IsHeld(), EDirectGdiPanicImageMutexError); |
|
438 #endif |
|
439 CImageSourceData* imageDataRet = NULL; |
|
440 |
|
441 for (TInt i = 0; i < iImages.Count() && !imageDataRet; i++) |
|
442 { |
|
443 CImageSourceData* imageData = reinterpret_cast<CImageSourceData*>(iImages[i]); |
|
444 if (imageData->SgImageId() == aSgImage.Id()) |
|
445 { |
|
446 imageDataRet = imageData; |
|
447 } |
|
448 } |
|
449 |
|
450 return imageDataRet; |
|
451 } |
|
452 |
|
453 /** |
|
454 Adds an image to the images array by saving its RSgImage id, its EGLImageKHR handle and its VGImage |
|
455 handle. A new CImageSourceData object is created to hold this information. This CImageSourceData object |
|
456 is also used to maintain a reference count on the number of times this image has been shared. |
|
457 The calling method should be holding the images mutex iMutex open before calling this method. |
|
458 |
|
459 @see RemoveImage() |
|
460 |
|
461 @param aSgImage The RSgImage to store, only the RSgImage id will be stored. |
|
462 @param aEglImage The EGLImageKHR to store. |
|
463 @param aVgImage The VGImage to stord. |
|
464 |
|
465 @pre The mutex iMutex is held. |
|
466 @return KErrNone if the details of the passed image are added to the image array successfully, KErrNoMemory |
|
467 if memory allocation fails, otherwise one of the system-wide error codes. |
|
468 |
|
469 @panic DGDIAdapter 52, if the mutex has not been opened before calling this method. |
|
470 This panic only happens when _DEBUG_DIRECTGDI is defined. |
|
471 */ |
|
472 TInt XDirectGdiDriverProcessState::AddImage(const RSgImage& aSgImage, EGLImageKHR aEglImage, VGImage aVgImage) |
|
473 { |
|
474 #ifdef _DEBUG_DIRECTGDI |
|
475 GRAPHICS_ASSERT_ALWAYS(iMutex.IsHeld(), EDirectGdiPanicImageMutexError); |
|
476 #endif |
|
477 TInt err = KErrNone; |
|
478 RHeap *prevHeap = User::SwitchHeap(iLocalHeap); |
|
479 |
|
480 CImageSourceData* imageData = new CImageSourceData(aSgImage.Id(), aEglImage, aVgImage); |
|
481 if (imageData == NULL) |
|
482 { |
|
483 err = KErrNoMemory; |
|
484 } |
|
485 if (err == KErrNone) |
|
486 { |
|
487 err = iImages.InsertInAddressOrder(imageData); |
|
488 } |
|
489 if (err == KErrNone) |
|
490 { |
|
491 imageData->Open(); |
|
492 } |
|
493 else |
|
494 { |
|
495 delete imageData; |
|
496 } |
|
497 |
|
498 User::SwitchHeap(prevHeap); |
|
499 return err; |
|
500 } |
|
501 |
|
502 /** |
|
503 Removes the passed image from the image array by searching for it using its VGImage handle. |
|
504 If the image is found in the image array, its reference count will be decremented. When the count reaches |
|
505 zero the image will be removed from the image array and destroyed. |
|
506 |
|
507 @see AddImage() |
|
508 |
|
509 @param aDisplay The EGL display this image was created with. |
|
510 @param aVgImage The hande to a VGImage to be removed from the image array. |
|
511 |
|
512 @pre The mutex iMutex is held. |
|
513 |
|
514 @return KErrNone if the image is removed from the image array successfully, KErrNotFound if the image |
|
515 cannot be found in the image array, otherwise one of the system-wide error codes. |
|
516 |
|
517 @panic DGDIAdapter 52, if the mutex has not been opened before calling this method. |
|
518 This panic only happens when _DEBUG_DIRECTGDI is defined. |
|
519 */ |
|
520 TInt XDirectGdiDriverProcessState::RemoveImage(EGLDisplay aDisplay, VGImage aVgImage) |
|
521 { |
|
522 #ifdef _DEBUG_DIRECTGDI |
|
523 GRAPHICS_ASSERT_ALWAYS(iMutex.IsHeld(), EDirectGdiPanicImageMutexError); |
|
524 #endif |
|
525 TInt err = KErrNone; |
|
526 TInt index = -1; |
|
527 CImageSourceData* removeImage = NULL; |
|
528 |
|
529 for (TInt i = 0; i < iImages.Count() && (index == -1); i++) |
|
530 { |
|
531 if (CImageSourceData* imageData = reinterpret_cast<CImageSourceData*>(iImages[i])) |
|
532 { |
|
533 if (imageData->VgImage() == aVgImage) |
|
534 { |
|
535 // Only remove the image if the reference count is zero |
|
536 if (imageData->Close() == 0) |
|
537 removeImage = imageData; |
|
538 index = i; |
|
539 } |
|
540 } |
|
541 } |
|
542 |
|
543 if (removeImage) |
|
544 { |
|
545 // Clean up the EGL and VG images |
|
546 vgDestroyImage(removeImage->VgImage()); |
|
547 iPfnEglDestroyImageKHR(aDisplay, removeImage->EglImage()); |
|
548 |
|
549 RHeap *prevHeap = User::SwitchHeap(iLocalHeap); |
|
550 iImages.Remove(index); |
|
551 iImages.GranularCompress(); |
|
552 delete removeImage; |
|
553 User::SwitchHeap(prevHeap); |
|
554 } |
|
555 |
|
556 if (index == -1) |
|
557 { |
|
558 err = KErrNotFound; |
|
559 } |
|
560 |
|
561 return err; |
|
562 } |