The Tor Browser / file comparison

comparison: gfx/layers/opengl/TextureHostOGL.h

gfx/layers/opengl/TextureHostOGL.h

changeset 0
6474c204b198
equal deleted inserted replaced
-1:000000000000 0:e921b6e0270f
1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #ifndef MOZILLA_GFX_TEXTUREOGL_H
7 #define MOZILLA_GFX_TEXTUREOGL_H
8
9 #include <stddef.h> // for size_t
10 #include <stdint.h> // for uint64_t
11 #include "CompositableHost.h"
12 #include "GLContextTypes.h" // for GLContext
13 #include "GLDefs.h" // for GLenum, LOCAL_GL_CLAMP_TO_EDGE, etc
14 #include "GLTextureImage.h" // for TextureImage
15 #include "gfxTypes.h"
16 #include "mozilla/GfxMessageUtils.h" // for gfxContentType
17 #include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
18 #include "mozilla/Attributes.h" // for MOZ_OVERRIDE
19 #include "mozilla/RefPtr.h" // for RefPtr
20 #include "mozilla/gfx/Matrix.h" // for Matrix4x4
21 #include "mozilla/gfx/Point.h" // for IntSize, IntPoint
22 #include "mozilla/gfx/Types.h" // for SurfaceFormat, etc
23 #include "mozilla/layers/CompositorTypes.h" // for TextureFlags
24 #include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
25 #include "mozilla/layers/TextureHost.h" // for TextureHost, etc
26 #include "mozilla/mozalloc.h" // for operator delete, etc
27 #include "nsAutoPtr.h" // for nsRefPtr
28 #include "nsCOMPtr.h" // for already_AddRefed
29 #include "nsDebug.h" // for NS_WARNING
30 #include "nsISupportsImpl.h" // for TextureImage::Release, etc
31 #include "OGLShaderProgram.h" // for ShaderProgramType, etc
32 #ifdef MOZ_WIDGET_GONK
33 #include <ui/GraphicBuffer.h>
34 #if ANDROID_VERSION >= 17
35 #include <ui/Fence.h>
36 #endif
37 #endif
38
39 class gfxReusableSurfaceWrapper;
40 class nsIntRegion;
41 struct nsIntPoint;
42 struct nsIntRect;
43 struct nsIntSize;
44
45 namespace mozilla {
46 namespace gfx {
47 class DataSourceSurface;
48 class SurfaceStream;
49 }
50
51 namespace layers {
52
53 class Compositor;
54 class CompositorOGL;
55 class TextureImageTextureSourceOGL;
56
57 /**
58 * CompositableBackendSpecificData implementation for the Gonk OpenGL backend.
59 * Share a same texture between TextureHosts in the same CompositableHost.
60 * By shareing the texture among the TextureHosts, number of texture allocations
61 * can be reduced than texture allocation in every TextureHosts.
62 * From Bug 912134, use only one texture among all TextureHosts degrade
63 * the rendering performance.
64 * CompositableDataGonkOGL chooses in a middile of them.
65 */
66 class CompositableDataGonkOGL : public CompositableBackendSpecificData
67 {
68 public:
69 CompositableDataGonkOGL();
70 virtual ~CompositableDataGonkOGL();
71
72 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
73 virtual void ClearData() MOZ_OVERRIDE;
74 GLuint GetTexture();
75 void DeleteTextureIfPresent();
76 gl::GLContext* gl() const;
77 protected:
78 RefPtr<CompositorOGL> mCompositor;
79 GLuint mTexture;
80 };
81
82 inline void ApplyFilterToBoundTexture(gl::GLContext* aGL,
83 gfx::Filter aFilter,
84 GLuint aTarget = LOCAL_GL_TEXTURE_2D)
85 {
86 GLenum filter =
87 (aFilter == gfx::Filter::POINT ? LOCAL_GL_NEAREST : LOCAL_GL_LINEAR);
88
89 aGL->fTexParameteri(aTarget, LOCAL_GL_TEXTURE_MIN_FILTER, filter);
90 aGL->fTexParameteri(aTarget, LOCAL_GL_TEXTURE_MAG_FILTER, filter);
91 }
92
93 /*
94 * TextureHost implementations for the OpenGL backend.
95 *
96 * Note that it is important to be careful about the ownership model with
97 * the OpenGL backend, due to some widget limitation on Linux: before
98 * the nsBaseWidget associated with our OpenGL context has been completely
99 * deleted, every resource belonging to the OpenGL context MUST have been
100 * released. At the moment the teardown sequence happens in the middle of
101 * the nsBaseWidget's destructor, meaning that at a given moment we must be
102 * able to easily find and release all the GL resources.
103 * The point is: be careful about the ownership model and limit the number
104 * of objects sharing references to GL resources to make the tear down
105 * sequence as simple as possible.
106 */
107
108 /**
109 * TextureSourceOGL provides the necessary API for CompositorOGL to composite
110 * a TextureSource.
111 */
112 class TextureSourceOGL
113 {
114 public:
115 TextureSourceOGL()
116 : mHasCachedFilter(false)
117 {}
118
119 virtual bool IsValid() const = 0;
120
121 virtual void BindTexture(GLenum aTextureUnit, gfx::Filter aFilter) = 0;
122
123 virtual gfx::IntSize GetSize() const = 0;
124
125 virtual GLenum GetTextureTarget() const { return LOCAL_GL_TEXTURE_2D; }
126
127 virtual gfx::SurfaceFormat GetFormat() const = 0;
128
129 virtual GLenum GetWrapMode() const = 0;
130
131 virtual gfx::Matrix4x4 GetTextureTransform() { return gfx::Matrix4x4(); }
132
133 virtual TextureImageTextureSourceOGL* AsTextureImageTextureSource() { return nullptr; }
134
135 void SetFilter(gl::GLContext* aGL, gfx::Filter aFilter)
136 {
137 if (mHasCachedFilter &&
138 mCachedFilter == aFilter) {
139 return;
140 }
141 mHasCachedFilter = true;
142 mCachedFilter = aFilter;
143 ApplyFilterToBoundTexture(aGL, aFilter, GetTextureTarget());
144 }
145
146 void ClearCachedFilter() { mHasCachedFilter = false; }
147
148 private:
149 gfx::Filter mCachedFilter;
150 bool mHasCachedFilter;
151 };
152
153 /**
154 * TextureHostOGL provides the necessary API for platform specific composition.
155 */
156 class TextureHostOGL
157 {
158 public:
159 #if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
160
161 /**
162 * Store a fence that will signal when the current buffer is no longer being read.
163 * Similar to android's GLConsumer::setReleaseFence()
164 */
165 virtual bool SetReleaseFence(const android::sp<android::Fence>& aReleaseFence);
166
167 /**
168 * Return a releaseFence's Fence and clear a reference to the Fence.
169 */
170 virtual android::sp<android::Fence> GetAndResetReleaseFence();
171
172 protected:
173 android::sp<android::Fence> mReleaseFence;
174
175 /**
176 * Hold previous ReleaseFence to prevent Fence delivery failure via gecko IPC.
177 * Fence is a kernel object and its lifetime is managed by a reference count.
178 * Until the Fence is delivered to client side, need to hold Fence on host side.
179 */
180 android::sp<android::Fence> mPrevReleaseFence;
181 #endif
182 };
183
184 /**
185 * A TextureSource backed by a TextureImage.
186 *
187 * Depending on the underlying TextureImage, may support texture tiling, so
188 * make sure to check AsTileIterator() and use the texture accordingly.
189 *
190 * This TextureSource can be used without a TextureHost and manage it's own
191 * GL texture(s).
192 */
193 class TextureImageTextureSourceOGL : public DataTextureSource
194 , public TextureSourceOGL
195 , public TileIterator
196 {
197 public:
198 TextureImageTextureSourceOGL(gl::GLContext* aGL,
199 TextureFlags aFlags = TEXTURE_FLAGS_DEFAULT)
200 : mGL(aGL)
201 , mFlags(aFlags)
202 , mIterating(false)
203 {}
204
205 // DataTextureSource
206
207 virtual bool Update(gfx::DataSourceSurface* aSurface,
208 nsIntRegion* aDestRegion = nullptr,
209 gfx::IntPoint* aSrcOffset = nullptr) MOZ_OVERRIDE;
210
211 void EnsureBuffer(const nsIntSize& aSize,
212 gfxContentType aContentType);
213
214 void CopyTo(const nsIntRect& aSourceRect,
215 DataTextureSource* aDest,
216 const nsIntRect& aDestRect);
217
218 virtual TextureImageTextureSourceOGL* AsTextureImageTextureSource() { return this; }
219
220 // TextureSource
221
222 virtual void DeallocateDeviceData() MOZ_OVERRIDE
223 {
224 mTexImage = nullptr;
225 SetUpdateSerial(0);
226 }
227
228 virtual TextureSourceOGL* AsSourceOGL() MOZ_OVERRIDE { return this; }
229
230 virtual void BindTexture(GLenum aTextureUnit, gfx::Filter aFilter) MOZ_OVERRIDE;
231
232 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;
233
234 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
235
236 virtual bool IsValid() const MOZ_OVERRIDE { return !!mTexImage; }
237
238 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
239
240 virtual GLenum GetWrapMode() const MOZ_OVERRIDE
241 {
242 return mTexImage->GetWrapMode();
243 }
244
245 // TileIterator
246
247 virtual TileIterator* AsTileIterator() MOZ_OVERRIDE { return this; }
248
249 virtual void BeginTileIteration() MOZ_OVERRIDE
250 {
251 mTexImage->BeginTileIteration();
252 mIterating = true;
253 }
254
255 virtual void EndTileIteration() MOZ_OVERRIDE
256 {
257 mIterating = false;
258 }
259
260 virtual nsIntRect GetTileRect() MOZ_OVERRIDE;
261
262 virtual size_t GetTileCount() MOZ_OVERRIDE
263 {
264 return mTexImage->GetTileCount();
265 }
266
267 virtual bool NextTile() MOZ_OVERRIDE
268 {
269 return mTexImage->NextTile();
270 }
271
272 protected:
273 nsRefPtr<gl::TextureImage> mTexImage;
274 gl::GLContext* mGL;
275 TextureFlags mFlags;
276 bool mIterating;
277 };
278
279 /**
280 * A texture source meant for use with SharedTextureHostOGL.
281 *
282 * It does not own any GL texture, and attaches its shared handle to one of
283 * the compositor's temporary textures when binding.
284 *
285 * The shared texture handle is owned by the TextureHost.
286 */
287 class SharedTextureSourceOGL : public NewTextureSource
288 , public TextureSourceOGL
289 {
290 public:
291 typedef gl::SharedTextureShareType SharedTextureShareType;
292
293 SharedTextureSourceOGL(CompositorOGL* aCompositor,
294 gl::SharedTextureHandle aHandle,
295 gfx::SurfaceFormat aFormat,
296 GLenum aTarget,
297 GLenum aWrapMode,
298 SharedTextureShareType aShareType,
299 gfx::IntSize aSize);
300
301 virtual TextureSourceOGL* AsSourceOGL() { return this; }
302
303 virtual void BindTexture(GLenum activetex, gfx::Filter aFilter) MOZ_OVERRIDE;
304
305 virtual bool IsValid() const MOZ_OVERRIDE;
306
307 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }
308
309 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mFormat; }
310
311 virtual gfx::Matrix4x4 GetTextureTransform() MOZ_OVERRIDE;
312
313 virtual GLenum GetTextureTarget() const { return mTextureTarget; }
314
315 virtual GLenum GetWrapMode() const MOZ_OVERRIDE { return mWrapMode; }
316
317 // SharedTextureSource doesn't own any gl texture
318 virtual void DeallocateDeviceData() {}
319
320 void DetachSharedHandle();
321
322 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
323
324 gl::GLContext* gl() const;
325
326 protected:
327 gfx::IntSize mSize;
328 CompositorOGL* mCompositor;
329 gl::SharedTextureHandle mSharedHandle;
330 gfx::SurfaceFormat mFormat;
331 SharedTextureShareType mShareType;
332 GLenum mTextureTarget;
333 GLenum mWrapMode;
334 };
335
336 /**
337 * A TextureHost for shared GL Textures
338 *
339 * Most of the logic actually happens in SharedTextureSourceOGL.
340 */
341 class SharedTextureHostOGL : public TextureHost
342 {
343 public:
344 SharedTextureHostOGL(TextureFlags aFlags,
345 gl::SharedTextureShareType aShareType,
346 gl::SharedTextureHandle aSharedhandle,
347 gfx::IntSize aSize,
348 bool inverted);
349
350 virtual ~SharedTextureHostOGL();
351
352 // SharedTextureHostOGL doesn't own any GL texture
353 virtual void DeallocateDeviceData() MOZ_OVERRIDE {}
354
355 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
356
357 virtual bool Lock() MOZ_OVERRIDE;
358
359 virtual void Unlock() MOZ_OVERRIDE;
360
361 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
362
363 virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE
364 {
365 return mTextureSource;
366 }
367
368 virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE
369 {
370 return nullptr; // XXX - implement this (for MOZ_DUMP_PAINTING)
371 }
372
373 gl::GLContext* gl() const;
374
375 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }
376
377 virtual const char* Name() { return "SharedTextureHostOGL"; }
378
379 protected:
380 gfx::IntSize mSize;
381 CompositorOGL* mCompositor;
382 gl::SharedTextureHandle mSharedHandle;
383 gl::SharedTextureShareType mShareType;
384
385 RefPtr<SharedTextureSourceOGL> mTextureSource;
386 };
387
388 /**
389 * A texture source meant for use with StreamTextureHostOGL.
390 *
391 * It does not own any texture, we get texture from SurfaceStream.
392 */
393 class StreamTextureSourceOGL : public NewTextureSource
394 , public TextureSourceOGL
395 {
396 public:
397 StreamTextureSourceOGL(CompositorOGL* aCompositor,
398 gfx::SurfaceStream* aStream)
399 : mCompositor(aCompositor)
400 , mStream(aStream)
401 , mTextureHandle(0)
402 , mTextureTarget(LOCAL_GL_TEXTURE_2D)
403 , mUploadTexture(0)
404 , mFormat(gfx::SurfaceFormat::UNKNOWN)
405 {
406 MOZ_COUNT_CTOR(StreamTextureSourceOGL);
407 }
408
409 ~StreamTextureSourceOGL()
410 {
411 MOZ_COUNT_DTOR(StreamTextureSourceOGL);
412 }
413
414 virtual TextureSourceOGL* AsSourceOGL() { return this; }
415
416 virtual void BindTexture(GLenum activetex, gfx::Filter aFilter) MOZ_OVERRIDE;
417
418 virtual bool IsValid() const MOZ_OVERRIDE { return !!gl(); }
419
420 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE { return mSize; }
421
422 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mFormat; }
423
424 virtual GLenum GetTextureTarget() const { return mTextureTarget; }
425
426 virtual GLenum GetWrapMode() const MOZ_OVERRIDE { return LOCAL_GL_CLAMP_TO_EDGE; }
427
428 virtual void DeallocateDeviceData();
429
430 bool RetrieveTextureFromStream();
431
432 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
433
434 protected:
435 gl::GLContext* gl() const;
436
437 CompositorOGL* mCompositor;
438 gfx::SurfaceStream* mStream;
439 GLuint mTextureHandle;
440 GLenum mTextureTarget;
441 GLuint mUploadTexture;
442 gfx::IntSize mSize;
443 gfx::SurfaceFormat mFormat;
444 };
445
446 /**
447 * A TextureHost for shared SurfaceStream
448 */
449 class StreamTextureHostOGL : public TextureHost
450 {
451 public:
452 StreamTextureHostOGL(TextureFlags aFlags,
453 const SurfaceStreamDescriptor& aDesc);
454
455 virtual ~StreamTextureHostOGL();
456
457 // SharedTextureHostOGL doesn't own any GL texture
458 virtual void DeallocateDeviceData() MOZ_OVERRIDE {}
459
460 virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
461
462 virtual bool Lock() MOZ_OVERRIDE;
463
464 virtual void Unlock() MOZ_OVERRIDE;
465
466 virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
467
468 virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE
469 {
470 return mTextureSource;
471 }
472
473 virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE
474 {
475 return nullptr; // XXX - implement this (for MOZ_DUMP_PAINTING)
476 }
477
478 virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;
479
480 #ifdef MOZ_LAYERS_HAVE_LOG
481 virtual const char* Name() { return "StreamTextureHostOGL"; }
482 #endif
483
484 protected:
485 CompositorOGL* mCompositor;
486 gfx::SurfaceStream* mStream;
487 RefPtr<StreamTextureSourceOGL> mTextureSource;
488 };
489
490 } // namespace
491 } // namespace
492
493 #endif /* MOZILLA_GFX_TEXTUREOGL_H */

Mercurial Repository: The Tor Browser

Europalab SCM Repository Server

mercurial