GLConsumer.h revision 9870c9b66cc73ee31aabba23aa06deaf673ee5ef
18ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis/* 28ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Copyright (C) 2010 The Android Open Source Project 38ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 48ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Licensed under the Apache License, Version 2.0 (the "License"); 58ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * you may not use this file except in compliance with the License. 68ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * You may obtain a copy of the License at 78ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 88ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * http://www.apache.org/licenses/LICENSE-2.0 98ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * 108ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * Unless required by applicable law or agreed to in writing, software 118ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * distributed under the License is distributed on an "AS IS" BASIS, 128ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * See the License for the specific language governing permissions and 148ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis * limitations under the License. 158ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis */ 168ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 172adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden#ifndef ANDROID_GUI_CONSUMER_H 182adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden#define ANDROID_GUI_CONSUMER_H 198ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 208ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <EGL/egl.h> 218ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <EGL/eglext.h> 228ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <GLES2/gl2.h> 23fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis#include <GLES2/gl2ext.h> 248ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 252adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden#include <gui/IGraphicBufferProducer.h> 266b091c53000c843211c218ce40287a7edca9bc63Daniel Lam#include <gui/BufferQueue.h> 279fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis#include <gui/ConsumerBase.h> 288ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 298ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis#include <ui/GraphicBuffer.h> 308ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 31fa28c35c21d1bf8b38f541758c291bc17a2d7270Jamie Gennis#include <utils/String8.h> 329a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#include <utils/Vector.h> 33fa28c35c21d1bf8b38f541758c291bc17a2d7270Jamie Gennis#include <utils/threads.h> 348ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 358ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennisnamespace android { 368ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis// ---------------------------------------------------------------------------- 378ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 386b091c53000c843211c218ce40287a7edca9bc63Daniel Lam 3968c7794183a7dbfe3b20d4ce832f8eb79c2c619aMathias Agopianclass String8; 409a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 410273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden/* 422adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden * GLConsumer consumes buffers of graphics data from a BufferQueue, 430273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * and makes them available to OpenGL as a texture. 440273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * 452adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden * A typical usage pattern is to set up the GLConsumer with the 460273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * desired options, and call updateTexImage() when a new frame is desired. 470273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * If a new frame is available, the texture will be updated. If not, 480273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * the previous contents are retained. 490273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * 500273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * By default, the texture is attached to the GL_TEXTURE_EXTERNAL_OES 510273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * texture target, in the EGL context of the first thread that calls 520273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * updateTexImage(). 530273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden * 542adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden * This class was previously called SurfaceTexture. 550273adbf0bc202eda2ca579ae0773464ea9c701fAndy McFadden */ 562adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFaddenclass GLConsumer : public ConsumerBase { 578ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennispublic: 589fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis typedef ConsumerBase::FrameAvailableListener FrameAvailableListener; 59c4d4aeab52435c177ded6abdd578fec8191f0f5dJamie Gennis 602adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // GLConsumer constructs a new GLConsumer object. tex indicates the 6174bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // name of the OpenGL ES texture to which images are to be streamed. 6286edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // allowSynchronousMode specifies whether or not synchronous mode can be 6386edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // enabled. texTarget specifies the OpenGL ES texture target to which the 6486edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // texture will be bound in updateTexImage. useFenceSync specifies whether 6586edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // fences should be used to synchronize access to buffers if that behavior 66b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam // is enabled at compile-time. A custom bufferQueue can be specified 67b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam // if behavior for queue/dequeue/connect etc needs to be customized. 68b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam // Otherwise a default BufferQueue will be created and used. 6974bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // 702adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // For legacy reasons, the GLConsumer is created in a state where it is 7174bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // considered attached to an OpenGL ES context for the purposes of the 7274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attachToContext and detachFromContext methods. However, despite being 7374bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // considered "attached" to a context, the specific OpenGL ES context 7474bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // doesn't get latched until the first call to updateTexImage. After that 7574bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // point, all calls to updateTexImage must be made with the same OpenGL ES 7674bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // context current. 7774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // 782adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // A GLConsumer may be detached from one OpenGL ES context and then 7974bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attached to a different context using the detachFromContext and 8074bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attachToContext methods, respectively. The intention of these methods is 812adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // purely to allow a GLConsumer to be transferred from one consumer 8274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // context to another. If such a transfer is not needed there is no 8374bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // requirement that either of these methods be called. 84db89edc94bd2a78226b407f9f7261e202e7fa325Mathias Agopian GLConsumer(const sp<IGraphicBufferConsumer>& bq, 858f938a53385a3c6d1c6aa24b3f38437bb2cc47aeMathias Agopian GLuint tex, GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, 86595264f1af12e25dce57d7c5b1d52ed86ac0d0c9Mathias Agopian bool useFenceSync = true, bool isControlledByApp = false); 878ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 88bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // updateTexImage acquires the most recently queued buffer, and sets the 89bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // image contents of the target texture to it. 908ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // 918ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // This call may only be made while the OpenGL ES context to which the 928ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // target texture belongs is bound to the calling thread. 9361e04b92bdeafc6fca89052d14dab1bd0c384a71Jamie Gennis // 94bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // This calls doGLFenceWait to ensure proper synchronization. 958ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis status_t updateTexImage(); 968ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 97ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // releaseTexImage releases the texture acquired in updateTexImage(). 98ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // This is intended to be used in single buffer mode. 99ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // 100ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // This call may only be made while the OpenGL ES context to which the 101ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // target texture belongs is bound to the calling thread. 102ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian status_t releaseTexImage(); 103ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian 10413f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall // setReleaseFence stores a fence that will signal when the current buffer 10513f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall // is no longer being read. This fence will be returned to the producer 10613f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall // when the current buffer is released by updateTexImage(). Multiple 10713f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall // fences can be set for a given buffer; they will be merged into a single 10813f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall // union fence. 10913f01cbdbd34779a234bc674df79e23672fd5c0bJesse Hall void setReleaseFence(const sp<Fence>& fence); 110ef19414bd8b77a26f5751f3845be79025a8263feJesse Hall 11131a353da225af5329735451c761b430d82dfda1bJamie Gennis // setDefaultMaxBufferCount sets the default limit on the maximum number 11231a353da225af5329735451c761b430d82dfda1bJamie Gennis // of buffers that will be allocated at one time. The image producer may 11331a353da225af5329735451c761b430d82dfda1bJamie Gennis // override the limit. 11431a353da225af5329735451c761b430d82dfda1bJamie Gennis status_t setDefaultMaxBufferCount(int bufferCount); 1158072711307aa98ee5ee6f7369860ae38c3e19656Mathias Agopian 116f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // getTransformMatrix retrieves the 4x4 texture coordinate transform matrix 117f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // associated with the texture image set by the most recent call to 118f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // updateTexImage. 119f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // 120f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // This transform matrix maps 2D homogeneous texture coordinates of the form 121f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // (s, t, 0, 1) with s and t in the inclusive range [0, 1] to the texture 122f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // coordinate that should be used to sample that location from the texture. 123f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // Sampling the texture outside of the range of this transform is undefined. 124f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // 125f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // This transform is necessary to compensate for transforms that the stream 126f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // content producer may implicitly apply to the content. By forcing users of 1272adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // a GLConsumer to apply this transform we avoid performing an extra 128f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // copy of the data that would be needed to hide the transform from the 129f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // user. 130f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // 131f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // The matrix is stored in column-major order so that it may be passed 132f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // directly to OpenGL ES via the glLoadMatrixf or glUniformMatrix4fv 133f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // functions. 134f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis void getTransformMatrix(float mtx[16]); 135f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis 1361d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // getTimestamp retrieves the timestamp associated with the texture image 1371d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // set by the most recent call to updateTexImage. 1381d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // 1391d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // The timestamp is in nanoseconds, and is monotonically increasing. Its 1401d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // other semantics (zero point, etc) are source-dependent and should be 1411d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // documented by the source. 1421d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala int64_t getTimestamp(); 1431d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala 144a5c75c01620179ce00812354778a29a80d76e71fMathias Agopian // setDefaultBufferSize is used to set the size of buffers returned by 145a5c75c01620179ce00812354778a29a80d76e71fMathias Agopian // requestBuffers when a with and height of zero is requested. 146a5c75c01620179ce00812354778a29a80d76e71fMathias Agopian // A call to setDefaultBufferSize() may trigger requestBuffers() to 147a5c75c01620179ce00812354778a29a80d76e71fMathias Agopian // be called from the client. 148194c76c0477189700fda068e19b953b1d9af201aMathias Agopian // The width and height parameters must be no greater than the minimum of 149194c76c0477189700fda068e19b953b1d9af201aMathias Agopian // GL_MAX_VIEWPORT_DIMS and GL_MAX_TEXTURE_SIZE (see: glGetIntegerv). 150194c76c0477189700fda068e19b953b1d9af201aMathias Agopian // An error due to invalid dimensions might not be reported until 151194c76c0477189700fda068e19b953b1d9af201aMathias Agopian // updateTexImage() is called. 152194c76c0477189700fda068e19b953b1d9af201aMathias Agopian status_t setDefaultBufferSize(uint32_t width, uint32_t height); 153a5c75c01620179ce00812354778a29a80d76e71fMathias Agopian 1545c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis // setFilteringEnabled sets whether the transform matrix should be computed 1555c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis // for use with bilinear filtering. 1565c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis void setFilteringEnabled(bool enabled); 1575c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis 1587a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian // getCurrentBuffer returns the buffer associated with the current image. 1597a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian sp<GraphicBuffer> getCurrentBuffer() const; 1607a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian 1617a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian // getCurrentTextureTarget returns the texture target of the current 1627a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian // texture as returned by updateTexImage(). 1637a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian GLenum getCurrentTextureTarget() const; 1647a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian 165efc7ab6dcea8c22ddd7c0259ef4ab4bbf1e93044Jamie Gennis // getCurrentCrop returns the cropping rectangle of the current buffer. 1667a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian Rect getCurrentCrop() const; 1677a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian 168efc7ab6dcea8c22ddd7c0259ef4ab4bbf1e93044Jamie Gennis // getCurrentTransform returns the transform of the current buffer. 1697a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian uint32_t getCurrentTransform() const; 1707a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian 171efc7ab6dcea8c22ddd7c0259ef4ab4bbf1e93044Jamie Gennis // getCurrentScalingMode returns the scaling mode of the current buffer. 1727734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian uint32_t getCurrentScalingMode() const; 1737734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian 174dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall // getCurrentFence returns the fence indicating when the current buffer is 175dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall // ready to be read from. 176dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall sp<Fence> getCurrentFence() const; 177dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall 17861e04b92bdeafc6fca89052d14dab1bd0c384a71Jamie Gennis // doGLFenceWait inserts a wait command into the OpenGL ES command stream 17961e04b92bdeafc6fca89052d14dab1bd0c384a71Jamie Gennis // to ensure that it is safe for future OpenGL ES commands to access the 180bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // current texture buffer. 18161e04b92bdeafc6fca89052d14dab1bd0c384a71Jamie Gennis status_t doGLFenceWait() const; 18261e04b92bdeafc6fca89052d14dab1bd0c384a71Jamie Gennis 1832adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // set the name of the GLConsumer that will be used to identify it in 184fa28c35c21d1bf8b38f541758c291bc17a2d7270Jamie Gennis // log messages. 185fa28c35c21d1bf8b38f541758c291bc17a2d7270Jamie Gennis void setName(const String8& name); 186fa28c35c21d1bf8b38f541758c291bc17a2d7270Jamie Gennis 187b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam // These functions call the corresponding BufferQueue implementation 188b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam // so the refactoring can proceed smoothly 189b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam status_t setDefaultBufferFormat(uint32_t defaultFormat); 190b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam status_t setConsumerUsageBits(uint32_t usage); 191b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam status_t setTransformHint(uint32_t hint); 192b267579ba8dfe3f47d2a481c5a3c2254e3d565a1Daniel Lam 1932adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // detachFromContext detaches the GLConsumer from the calling thread's 19474bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // current OpenGL ES context. This context must be the same as the context 19574bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // that was current for previous calls to updateTexImage. 19674bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // 1972adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // Detaching a GLConsumer from an OpenGL ES context will result in the 19874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // deletion of the OpenGL ES texture object into which the images were being 1992adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // streamed. After a GLConsumer has been detached from the OpenGL ES 20074bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // context calls to updateTexImage will fail returning INVALID_OPERATION 2012adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // until the GLConsumer is attached to a new OpenGL ES context using the 20274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attachToContext method. 20374bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis status_t detachFromContext(); 20474bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis 2052adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // attachToContext attaches a GLConsumer that is currently in the 2062adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // 'detached' state to the current OpenGL ES context. A GLConsumer is 20774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // in the 'detached' state iff detachFromContext has successfully been 20874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // called and no calls to attachToContext have succeeded since the last 20974bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // detachFromContext call. Calls to attachToContext made on a 2102adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // GLConsumer that is not in the 'detached' state will result in an 21174bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // INVALID_OPERATION error. 21274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // 21374bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // The tex argument specifies the OpenGL ES texture object name in the 21474bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // new context into which the image contents will be streamed. A successful 21574bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // call to attachToContext will result in this texture object being bound to 21674bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // the texture target and populated with the image contents that were 21774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // current at the time of the last call to detachFromContext. 21874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis status_t attachToContext(GLuint tex); 21974bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis 220ce7a6c0fc9d75b80da030d1790321e84475f956aJamie Gennisprotected: 221ed059a8d754770c3cf28b78dba30f7a6ba475dbeJamie Gennis 2229fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // abandonLocked overrides the ConsumerBase method to clear 2239fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // mCurrentTextureBuf in addition to the ConsumerBase behavior. 2249fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis virtual void abandonLocked(); 2259fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis 2262adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // dumpLocked overrides the ConsumerBase method to dump GLConsumer- 2279fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // specific info in addition to the ConsumerBase behavior. 22874d211ae26a0257c6075a823812e40b55aa1e653Mathias Agopian virtual void dumpLocked(String8& result, const char* prefix) const; 2299fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis 2309fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // acquireBufferLocked overrides the ConsumerBase method to update the 2319fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // mEglSlots array in addition to the ConsumerBase behavior. 2321585c4d9fbbba3ba70ae625923b85cd02cb8a0fdAndy McFadden virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item, 2331585c4d9fbbba3ba70ae625923b85cd02cb8a0fdAndy McFadden nsecs_t presentWhen); 2349fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis 2359fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // releaseBufferLocked overrides the ConsumerBase method to update the 2369fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // mEglSlots array in addition to the ConsumerBase. 237c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar virtual status_t releaseBufferLocked(int slot, 238c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar const sp<GraphicBuffer> graphicBuffer, 239c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar EGLDisplay display, EGLSyncKHR eglFence); 240fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis 241c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar status_t releaseBufferLocked(int slot, 242c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar const sp<GraphicBuffer> graphicBuffer, EGLSyncKHR eglFence) { 243c5d7b7d323bba8772a9005f7d300ad983a04733aLajos Molnar return releaseBufferLocked(slot, graphicBuffer, mEglDisplay, eglFence); 244bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden } 245bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden 2467a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian static bool isExternalFormat(uint32_t format); 2477a042bf324fe3f3d5d4085fda21fe50dc0c362b4Mathias Agopian 248bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // This releases the buffer in the slot referenced by mCurrentTexture, 249bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // then updates state to refer to the BufferItem, which must be a 250bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // newly-acquired buffer. 251ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian status_t updateAndReleaseLocked(const BufferQueue::BufferItem& item); 252bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden 253bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // Binds mTexName and the current buffer to mTexTarget. Uses 25497eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden // mCurrentTexture if it's set, mCurrentTextureBuf if not. If the 25597eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden // bind succeeds, this calls doGLFenceWait. 25697eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden status_t bindTextureImageLocked(); 257bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden 258bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // Gets the current EGLDisplay and EGLContext values, and compares them 259bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // to mEglDisplay and mEglContext. If the fields have been previously 260bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // set, the values must match; if not, the fields are set to the current 261bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // values. 262bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden status_t checkAndUpdateEglStateLocked(); 2638ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 264bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFaddenprivate: 2658ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // createImage creates a new EGLImage from a GraphicBuffer. 2668ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis EGLImageKHR createImage(EGLDisplay dpy, 2678ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis const sp<GraphicBuffer>& graphicBuffer); 2688ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 269fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // freeBufferLocked frees up the given buffer slot. If the slot has been 270fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // initialized this will release the reference to the GraphicBuffer in that 271fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // slot and destroy the EGLImage in that slot. Otherwise it has no effect. 272fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // 273fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // This method must be called with mMutex locked. 2749fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis virtual void freeBufferLocked(int slotIndex); 275fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis 276e96e9e1093b5700e9f403a6e2479da7dc36d3b71Mathias Agopian // computeCurrentTransformMatrixLocked computes the transform matrix for the 277736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis // current texture. It uses mCurrentTransform and the current GraphicBuffer 278736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis // to compute this matrix and stores it in mCurrentTransformMatrix. 279e96e9e1093b5700e9f403a6e2479da7dc36d3b71Mathias Agopian // mCurrentTextureBuf must not be NULL. 280e96e9e1093b5700e9f403a6e2479da7dc36d3b71Mathias Agopian void computeCurrentTransformMatrixLocked(); 281736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis 28297eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden // doGLFenceWaitLocked inserts a wait command into the OpenGL ES command 28397eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden // stream to ensure that it is safe for future OpenGL ES commands to 28497eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden // access the current texture buffer. 28597eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden status_t doGLFenceWaitLocked() const; 28697eba8904c2f221c42a9473407223a4c3a213f75Andy McFadden 28774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // syncForReleaseLocked performs the synchronization needed to release the 28874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // current slot from an OpenGL ES context. If needed it will set the 28974bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // current slot's fence to guard against a producer accessing the buffer 29074bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // before the outstanding accesses have completed. 29174bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis status_t syncForReleaseLocked(EGLDisplay dpy); 29274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis 293bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // Normally, when we bind a buffer to a texture target, we bind a buffer 294bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // that is referenced by an entry in mEglSlots. In some situations we 295bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // have a buffer in mCurrentTextureBuf, but no corresponding entry for 296bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // it in our slot array. bindUnslottedBuffer handles that situation by 297bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden // binding the buffer without touching the EglSlots. 298bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden status_t bindUnslottedBufferLocked(EGLDisplay dpy); 299bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden 3009870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian // returns a graphic buffer used when the texture image has been released 3019870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian static sp<GraphicBuffer> getDebugTexImageBuffer(); 3029870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian 3032adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // The default consumer usage flags that GLConsumer always sets on its 30485b217668d6840c8e6a109adfb99461313676f8dEino-Ville Talvala // BufferQueue instance; these will be OR:d with any additional flags passed 3052adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // from the GLConsumer user. In particular, GLConsumer will always 30685b217668d6840c8e6a109adfb99461313676f8dEino-Ville Talvala // consume buffers as hardware textures. 30785b217668d6840c8e6a109adfb99461313676f8dEino-Ville Talvala static const uint32_t DEFAULT_USAGE_FLAGS = GraphicBuffer::USAGE_HW_TEXTURE; 30885b217668d6840c8e6a109adfb99461313676f8dEino-Ville Talvala 3099a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis // mCurrentTextureBuf is the graphic buffer of the current texture. It's 3109a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis // possible that this buffer is not associated with any buffer slot, so we 31129c870271e8d3f8c40c356283650ba54fe71a16bJamie Gennis // must track it separately in order to support the getCurrentBuffer method. 3129a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis sp<GraphicBuffer> mCurrentTextureBuf; 3139a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 314f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // mCurrentCrop is the crop rectangle that applies to the current texture. 3157734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian // It gets set each time updateTexImage is called. 316f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis Rect mCurrentCrop; 317f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis 318f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis // mCurrentTransform is the transform identifier for the current texture. It 3197734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian // gets set each time updateTexImage is called. 320f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis uint32_t mCurrentTransform; 321f238e28500ca756fbd9e323f728ce7c8dda59475Jamie Gennis 3227734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian // mCurrentScalingMode is the scaling mode for the current texture. It gets 323e692ab9a6be63193c5b52a6562d85d06c40463b8Mathias Agopian // set each time updateTexImage is called. 3247734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian uint32_t mCurrentScalingMode; 3257734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian 326dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall // mCurrentFence is the fence received from BufferQueue in updateTexImage. 327dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall sp<Fence> mCurrentFence; 328dc5b485f74edf2d2f31c62054eb6c180421a3adeJesse Hall 329736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis // mCurrentTransformMatrix is the transform matrix for the current texture. 330736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis // It gets computed by computeTransformMatrix each time updateTexImage is 331736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis // called. 332736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis float mCurrentTransformMatrix[16]; 333736aa9573bb7b78f9c315f396c104491b3639426Jamie Gennis 3341d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala // mCurrentTimestamp is the timestamp for the current texture. It 3357734ebfe47f42f980c1b44c1f284a91d8ad1d6c7Mathias Agopian // gets set each time updateTexImage is called. 3361d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala int64_t mCurrentTimestamp; 3371d01a12e7150be569557b64da9b8663c62c13594Eino-Ville Talvala 338016c8cbce4dde21f2703b9865f52d16b8d5d5ae2Daniel Lam uint32_t mDefaultWidth, mDefaultHeight; 339016c8cbce4dde21f2703b9865f52d16b8d5d5ae2Daniel Lam 3405c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis // mFilteringEnabled indicates whether the transform matrix is computed for 3415c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis // use with bilinear filtering. It defaults to true and is changed by 3425c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis // setFilteringEnabled(). 3435c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis bool mFilteringEnabled; 3445c1139fea3cc0fd9847a6594d853a458152b2fbcJamie Gennis 3458ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis // mTexName is the name of the OpenGL texture to which streamed images will 346292a31a4c2ae2f6faf134e8e4a726583017dad06Pannag Sanketi // be bound when updateTexImage is called. It is set at construction time 34774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // and can be changed with a call to attachToContext. 34874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis GLuint mTexName; 3498ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 35086edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // mUseFenceSync indicates whether creation of the EGL_KHR_fence_sync 35186edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // extension should be used to prevent buffers from being dequeued before 35286edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // it's safe for them to be written. It gets set at construction time and 35386edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis // never changes. 35486edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis const bool mUseFenceSync; 35586edf4f6470ee0f108bf40d3c1d23bf0a78c9c38Jamie Gennis 356fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // mTexTarget is the GL texture target with which the GL texture object is 357fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // associated. It is set in the constructor and never changed. It is 358fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // almost always GL_TEXTURE_EXTERNAL_OES except for one use case in Android 359fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // Browser. In that case it is set to GL_TEXTURE_2D to allow 360fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // glCopyTexSubImage to read from the texture. This is a hack to work 361fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // around a GL driver limitation on the number of FBO attachments, which the 362fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis // browser's tile cache exceeds. 363fb1b5a2f333800574b0da435d1200cf9b13d723fJamie Gennis const GLenum mTexTarget; 364a929748ddb67cbece3337c7fda7877fdeb973aa4Sunita Nadampalli 365fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // EGLSlot contains the information and object references that 3662adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // GLConsumer maintains about a BufferQueue buffer slot. 367bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden struct EglSlot { 368bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden EglSlot() 369eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam : mEglImage(EGL_NO_IMAGE_KHR), 3709fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis mEglFence(EGL_NO_SYNC_KHR) { 371eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam } 372eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam 373eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // mEglImage is the EGLImage created from mGraphicBuffer. 374eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam EGLImageKHR mEglImage; 375eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam 376eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // mFence is the EGL sync object that must signal before the buffer 377eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // associated with this buffer slot may be dequeued. It is initialized 378eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // to EGL_NO_SYNC_KHR when the buffer is created and (optionally, based 379eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // on a compile-time option) set to a new sync object in updateTexImage. 3809fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis EGLSyncKHR mEglFence; 381eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam }; 382eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam 3832adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // mEglDisplay is the EGLDisplay with which this GLConsumer is currently 384ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis // associated. It is intialized to EGL_NO_DISPLAY and gets set to the 38574bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // current display when updateTexImage is called for the first time and when 38674bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attachToContext is called. 387ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis EGLDisplay mEglDisplay; 388ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis 3892adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden // mEglContext is the OpenGL ES context with which this GLConsumer is 390ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis // currently associated. It is initialized to EGL_NO_CONTEXT and gets set 391ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis // to the current GL context when updateTexImage is called for the first 39274bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // time and when attachToContext is called. 393ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis EGLContext mEglContext; 394ce561372186c7549a8a5fe996ac5965cda087007Jamie Gennis 395fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // mEGLSlots stores the buffers that have been allocated by the BufferQueue 396fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // for each buffer slot. It is initialized to null pointers, and gets 397fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // filled in with the result of BufferQueue::acquire when the 398fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // client dequeues a buffer from a 399fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // slot that has not yet been used. The buffer allocated to a slot will also 400fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // be replaced if the requested buffer usage or geometry differs from that 401fa5b40ebb8923133df12dc70591bfe35b3f1c9b3Jamie Gennis // of the buffer allocated to a slot. 402bf974abe92f7495529916fe0f483f3b56e7c30e3Andy McFadden EglSlot mEglSlots[BufferQueue::NUM_BUFFER_SLOTS]; 403eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam 404eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // mCurrentTexture is the buffer slot index of the buffer that is currently 405eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // bound to the OpenGL texture. It is initialized to INVALID_BUFFER_SLOT, 406eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // indicating that no buffer slot is currently bound to the texture. Note, 407eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean 408eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // that no buffer is bound to the texture. A call to setBufferCount will 409eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam // reset mCurrentTexture to INVALID_BUFFER_SLOT. 410eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam int mCurrentTexture; 411eae59d2ea77ef57aab203fb185a880ce37ac38d6Daniel Lam 4129fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // mAttached indicates whether the ConsumerBase is currently attached to 41374bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // an OpenGL ES context. For legacy reasons, this is initialized to true, 4149fea3421ffddf6480f57f55a25936a886043d909Jamie Gennis // indicating that the ConsumerBase is considered to be attached to 41574bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // whatever context is current at the time of the first updateTexImage call. 41674bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // It is set to false by detachFromContext, and then set to true again by 41774bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis // attachToContext. 41874bed55fff0132be319bcd1703970516ae28b3a9Jamie Gennis bool mAttached; 419ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian 4209870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian // protects static initialization 4219870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian static Mutex sStaticInitLock; 4229870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian 423ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // mReleasedTexImageBuffer is a dummy buffer used when in single buffer 424ad678e18b66f495efa78dc3b9ab99b579945c9e2Mathias Agopian // mode and releaseTexImage() has been called 4259870c9b66cc73ee31aabba23aa06deaf673ee5efMathias Agopian static sp<GraphicBuffer> sReleasedTexImageBuffer; 4268ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis}; 4278ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 4288ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis// ---------------------------------------------------------------------------- 4298ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis}; // namespace android 4308ba32fade11abb73f3fd47ea0953c9528eb5b91fJamie Gennis 4312adaf04fab35cf47c824d74d901b54094e01ccd3Andy McFadden#endif // ANDROID_GUI_CONSUMER_H 432