Home | History | Annotate | Download | only in src 
      1 /*
      2  * Copyright 2011, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef __GLTRACE_CONTEXT_H_
     18 #define __GLTRACE_CONTEXT_H_
     19 
     20 #include <map>
     21 #include <pthread.h>
     22 #include <utils/KeyedVector.h>
     23 
     24 #include "hooks.h"
     25 #include "gltrace_transport.h"
     26 
     27 namespace android {
     28 namespace gltrace {
     29 
     30 using ::android::gl_hooks_t;
     31 
     32 enum FBBinding {CURRENTLY_BOUND_FB, FB0};
     33 
     34 class GLTraceState;
     35 
     36 class ElementArrayBuffer {
     37     GLvoid *mBuf;
     38     GLsizeiptr mSize;
     39 
     40 public:
     41     ElementArrayBuffer():mBuf(NULL), mSize(0) {}
     42     ElementArrayBuffer(GLvoid *buf, GLsizeiptr size);
     43     ~ElementArrayBuffer();
     44 
     45     void updateSubBuffer(GLintptr offset, const GLvoid* data, GLsizeiptr size);
     46     GLvoid *getBuffer();
     47     GLsizeiptr getSize();
     48 };
     49 
     50 /** GL Trace Context info associated with each EGLContext */
     51 class GLTraceContext {
     52     int mId;                    /* unique context id */
     53     int mVersion;               /* GL version, e.g: egl_connection_t::GLESv2_INDEX */
     54     GLTraceState *mState;       /* parent GL Trace state (for per process GL Trace State Info) */
     55 
     56     void *fbcontents;           /* memory area to read framebuffer contents */
     57     void *fbcompressed;         /* destination for lzf compressed framebuffer */
     58     unsigned fbcontentsSize;    /* size of fbcontents & fbcompressed buffers */
     59 
     60     BufferedOutputStream *mBufferedOutputStream; /* stream where trace info is sent */
     61 
     62     /* list of element array buffers in use. */
     63     DefaultKeyedVector<GLuint, ElementArrayBuffer*> mElementArrayBuffers;
     64 
     65     void resizeFBMemory(unsigned minSize);
     66 public:
     67     gl_hooks_t *hooks;
     68 
     69     GLTraceContext(int id, int version, GLTraceState *state, BufferedOutputStream *stream);
     70     int getId();
     71     int getVersion();
     72     GLTraceState *getGlobalTraceState();
     73     void getCompressedFB(void **fb, unsigned *fbsize,
     74                             unsigned *fbwidth, unsigned *fbheight,
     75                             FBBinding fbToRead);
     76 
     77     // Methods to work with element array buffers
     78     void bindBuffer(GLuint bufferId, GLvoid *data, GLsizeiptr size);
     79     void getBuffer(GLuint bufferId, GLvoid **data, GLsizeiptr *size);
     80     void updateBufferSubData(GLuint bufferId, GLintptr offset, GLvoid *data, GLsizeiptr size);
     81     void deleteBuffer(GLuint bufferId);
     82 
     83     void traceGLMessage(GLMessage *msg);
     84 };
     85 
     86 /** Per process trace state. */
     87 class GLTraceState {
     88     int mTraceContextIds;
     89     TCPStream *mStream;
     90     std::map<EGLContext, GLTraceContext*> mPerContextState;
     91 
     92     /* Options controlling additional data to be collected on
     93        certain trace calls. */
     94     bool mCollectFbOnEglSwap;
     95     bool mCollectFbOnGlDraw;
     96     bool mCollectTextureDataOnGlTexImage;
     97     pthread_rwlock_t mTraceOptionsRwLock;
     98 
     99     /* helper methods to get/set values using provided lock for mutual exclusion. */
    100     void safeSetValue(bool *ptr, bool value, pthread_rwlock_t *lock);
    101     bool safeGetValue(bool *ptr, pthread_rwlock_t *lock);
    102 public:
    103     GLTraceState(TCPStream *stream);
    104     ~GLTraceState();
    105 
    106     GLTraceContext *createTraceContext(int version, EGLContext c);
    107     GLTraceContext *getTraceContext(EGLContext c);
    108 
    109     TCPStream *getStream();
    110 
    111     /* Methods to set trace options. */
    112     void setCollectFbOnEglSwap(bool en);
    113     void setCollectFbOnGlDraw(bool en);
    114     void setCollectTextureDataOnGlTexImage(bool en);
    115 
    116     /* Methods to retrieve trace options. */
    117     bool shouldCollectFbOnEglSwap();
    118     bool shouldCollectFbOnGlDraw();
    119     bool shouldCollectTextureDataOnGlTexImage();
    120 };
    121 
    122 void setupTraceContextThreadSpecific(GLTraceContext *context);
    123 GLTraceContext *getGLTraceContext();
    124 void releaseContext();
    125 
    126 };
    127 };
    128 
    129 #endif
    130